What agency has the most technical nitrox training?

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Correct, though I think Tec40 is just as idiotic... Why bother doing accelerated deco on 50%? What's the point for recreational limits? Complete waste of money. Tec 45 is infinitely better and doesn't teach you anything worthwhile that shouldn't have already been covered in Tec40. Can you do the math? If yes, then move on. Can you handle staged decompression? If yes, then move on. There is literally nothing else to learn for accelerated deco. You can kill yourself on EAN50 just as easily as EAN100, just have to go deeper to do it. You're rated to 5.5ATA which has a PO2 of 2.8 on EAN50, that will screw you up pretty bad if you switch at that depth. Same implications as O2 at 60ft, but if you can't differentiate, you shouldn't be doing staged deco in the first place.

I think you don't understand the concept of 'progression' (or really know the PADI TecRec system).


Tec40 allows 10 minutes non-accelerated deco, to a max depth of 40m/130ft, and allows 50% as an 'ascent gas' for conservatism only.

Yes... the course doesn't give you a qualification that lets you run off an expose yourself to potentially lethal risk if you screw up. Given that it's only 4 training dives (min)... that seems quite prudent.

Go a step further onto Tec45... and you can do unlimited deco, with 1 deco gas (>100%), to 45m max. Now you can really hurt yourself. But the presumption is that you've made all your mistakes before you get that card.

One more step onto Tec50... now you've got two deco gasses.... and the opportunity to kill yourself in a new way, if you screw up a gas-switch (a known killer).

It isn't about depth progression.... so much as risk exposure versus training/experience. Very logical really.

I do a lot of decompression diving shallower than 45m.... and I do some significant hangs from those dives (with 50%). Bottom time is what matters. And all technical divers know that time, not depth, is the most critical factor.... don't we?

---------- Post added September 19th, 2015 at 06:58 AM ----------

Correct, though I think Tec40 is just as idiotic... Why bother doing accelerated deco on 50%? What's the point for recreational limits? Complete waste of money. Tec 45 is infinitely better and doesn't teach you anything worthwhile that shouldn't have already been covered in Tec40. Can you do the math? If yes, then move on. Can you handle staged decompression? If yes, then move on. There is literally nothing else to learn for accelerated deco. You can kill yourself on EAN50 just as easily as EAN100, just have to go deeper to do it. You're rated to 5.5ATA which has a PO2 of 2.8 on EAN50, that will screw you up pretty bad if you switch at that depth. Same implications as O2 at 60ft, but if you can't differentiate, you shouldn't be doing staged deco in the first place.

I think you don't understand the concept of 'progression' (or really know the PADI TecRec system).


Tec40 allows 10 minutes non-accelerated deco, to a max depth of 40m/130ft, and allows 50% as an 'ascent gas' for conservatism only.

Yes... the course doesn't give you a qualification that lets you run off an expose yourself to potentially lethal risk if you screw up. Given that it's only 4 training dives (min)... that seems quite prudent.

Go a step further onto Tec45... and you can do unlimited deco, with 1 deco gas (>100%), to 45m max. Now you can really hurt yourself. But the presumption is that you've made all your mistakes before you get that card.

One more step onto Tec50... now you've got two deco gasses.... and the opportunity to kill yourself in a new way, if you screw up a gas-switch (a known killer).

It isn't about depth progression.... so much as risk exposure versus training/experience. Very logical really.

I do a lot of decompression diving shallower than 45m.... and I do some significant hangs from those dives (with 50%). Bottom time is what matters. And all technical divers know that time, not depth, is the most critical factor.... don't we?
 
I think you don't understand the concept of 'progression' (or really know the PADI TecRec system).


Tec40 allows 10 minutes non-accelerated deco, to a max depth of 40m/130ft, and allows 50% as an 'ascent gas' for conservatism only.

Yes... the course doesn't give you a qualification that lets you run off an expose yourself to potentially lethal risk if you screw up. Given that it's only 4 training dives (min)... that seems quite prudent.

Go a step further onto Tec45... and you can do unlimited deco, with 1 deco gas (>100%), to 45m max. Now you can really hurt yourself. But the presumption is that you've made all your mistakes before you get that card.

One more step onto Tec50... now you've got two deco gasses.... and the opportunity to kill yourself in a new way, if you screw up a gas-switch (a known killer).

It isn't about depth progression.... so much as risk exposure versus training/experience. Very logical really.

I do a lot of decompression diving shallower than 45m.... and I do some significant hangs from those dives (with 50%). Bottom time is what matters. And all technical divers know that time, not depth, is the most critical factor.... don't we?

Tbone's problem with the classes (and one I agree with) is how they are structured/layed out. They have broken it up so that you have one class with all the meat and fixings of a hamburger but no bread and the other class that is all bread and no meat.

So you can do 10 minutes of deco, but they arbitrarily limit your depth and your o2 bottle, but if you are going to get into deco you had better know all the deco safety procedures. What if something goes wrong/delays you on one of these "10 minutes of deco max dives" and you end up having a much higher obligation 100% could would help in that situation.

By the time you get to Tec 45 and they finally give you an 100% O2 bottle, you have all the deco knowledge (presumably) and skills to execute a dive that requires 100% from your Tec 40 class, so what the hell is this class teaching other than another way for PADI to get a card.

I don't call what Padi does a "progression", I call it dicking around. If you want a progression in your dives like the PADI class, do it on your own. No one is telling you you need to do your first tech dives to 160ft with a pure O2 bottle, if you want to do shallower dives and dive with 50% fine. The first level of tech class (AN/DP) should take you all the way to the point where trimix and/or multiple stages starts becoming a concern.
 
....how they are structured/layed out. They have broken it up so that you have one class with all the meat and fixings of a hamburger but no bread and the other class that is all bread and no meat.


How much 'meat' should someone chew after (min) 4 training dives? Enough meat to choke on?


Tec40 is a small hamburger.... a slider. It's 'complete'... but bite-size.
Tec45 is a regular hamburger... it's filling.
Tec50 is a 1/4 pounder..
.... and so on.


In contrast.... Advanced Nitrox is a meat patty without a bun. The bun is Deco procedures. Only then do you have your hamburger.


So you can do 10 minutes of deco, but they arbitrarily limit your depth and your o2 bottle, but if you are going to get into deco you had better know all the deco safety procedures. What if something goes wrong/delays you on one of these "10 minutes of deco max dives"


It's non-accelerated deco, remember?


So how far can they go over? Far enough that the 50% (for conservatism) doesn't....cannot...off-set the risk?


They SHOULD be able to complete all their deco on back-gas (1/3rds).... the 50% is just extra gas, extra safety, extra off-gassing beyond what is computed.


It is basically VERY SAFE diving.... for an interim period whilst the fledgling technical diver gets used to the equipment and protocols necessary to dive decompression safely.


Very competent students progress directly onto Tec45. Students needing remedial experience/training stay at Tec40 until they are safe and ready to progress to dives that can severely punish their mistakes.


...and you end up having a much higher obligation 100% could would help in that situation.


Care to explain why?


MultiDeco: VPM-B +2
Depth = 40m
Bottom Time = 12min
Bottom Gas = 21%


RT on 21% = 25 min
RT on 50% = 21 min
RT on 100% = 21 min


No difference.... except.... a fledgling technical diver who's done (min) 4 training dives.... and might have been an AOW/Deep/Nitrox diver a few days before.... isn't hanging at 6m breathing 100%. SAFE.


Yeah.... yeah... yeah.... 'technical divers should be capable of accurate stops and using 100%'.... we all know it. But this isn't full technical diving.... it's entry-level baby steps.... it is LIMITED.


Unlike Advanced Nitrox... it has a stand-alone benefit... you can do dives that build your experience and capability as a step towards higher level training and more punishing dives.


What does Tec40 'give' you? Well.... use an appropriate bottom gas (say...26%) and that 'small' 10 minutes of non-accelerated deco... then you get substantially longer dives in the 30-40m range.... and you can surface with relatively much less significant decompression stress (better off-gassed) than a recreational-only diver who's done less bottom time.


....and you got to practice the full gammut of deco planning, procedures and skills on that dive. A step towards Tec45 readiness


Does Advanced Nitrox (alone...as a single course) permit a benefit like that?


By the time you get to Tec 45 and they finally give you an 100% O2 bottle, you have all the deco knowledge (presumably) and skills to execute a dive that requires 100% from your Tec 40 class, so what the hell is this class teaching other than another way for PADI to get a card.


The way I see it.... the progression upwards in any technical syllabus isn't about new skills.... it's about doing essential skills BETTER. More accuracy, more precision, less task-loading, less stress...... matching the increasing risk of screwing it up.


Tec40 is a 'training wheels' type of course. Tec45 is where you need a band-aid and mom's cuddle if you fall off the bike. Tec50 is where your mom's boo-boo kiss won't stop you crying...


The first level of tech class (AN/DP) should take you all the way to the point where trimix and/or multiple stages starts becoming a concern.




AN/DP is TWO levels, two courses of 4 dives each.


Tec40/45 is TWO levels, two courses of 4 dives each.


It's pretty basic math. 1+1 = 2


You're saying the apple tastes sour. But you're actually biting into an orange.
 
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I didn't realize how unique my course was. Though I have to say that I don't think the instructor had to work too hard to get me squared away. :wink: I also admit that I am a type A student that actually does her homework BEFORE class but still...

Seriously. Even he TDI website says...

Some of the skills you will complete in this course include:


  • Demonstrate buoyancy control; ability to hover at fixed position in water column without moving hands or feet
  • Show good awareness of buddy and other team members through communication, proximity, and team oriented dive practices
  • Demonstrate the ability to manage free flow from primary regulator in controlled fashion, shut down cycle, and switch to back up regulator
  • Conduct appropriate safety stop while maintaining neutral buoyancy
  • Demonstrate the ability to share air with buddy as both recipient and donor in a controlled manner while maintaining position in the water column
  • Demonstrate correct body position; appropriate trim, such as horizontal/streamlined when moving forward
  • Demonstrate proper stress analysis with self and dive buddy


And this is just a quick peek at the highlights. I really don't understand what all the fuss is.

and those say demonstrate, which implies you don't have to be taught it because you already know how to do it. If the instructor has to teach it, then you are in an intro to tech class. Those definitions imply that you already know it.

At Devon, you say I don't understand progression, you are right, I don't understand why PADI doesn't think that divers who are wanting to get into technical diving can't limit themselves, or think they will actually abide by those limits. PADI breaks it down too far, you can either do staged deco, or you can't. It's literally that simple. If you can't, don't do it, but you are defending a system that is designed for profit not to produce quality diver. You said it yourself, it's baby steps designed to keep the training wheels on. AN/DP does not have to be 8 dives, you can combine the courses, usually 3 days and 5-6 dives. You are far too entrenched in the PADI mindset that people need training wheels. That is all to fix poor training at the lower levels. GUE is proof of that. Train them well in the beginning and you don't need training wheels because they can go from a tricycle, to a bike, to a motorcycle. PADI goes Trike, training wheels, one training wheel, bike, three-wheeler, moped, bike with sidecar, then motorcycle.

It's ridiculous and you can provide no meaningful justification for it other than to make the agency and instructor more money by teaching more courses. It used to not be like broken down, it has only started being broken down in recent years when mentoring became frowned upon because it doesn't make people money, so now we have to have course to cover all of the things that aren't fostered through proper initial training, and then a gradual progression through more technical areas with divers that are better than you. Combine that with their *I'll admit correct* assumption that people can't be trusted to limit themselves. Just because you are certified for accelerated deco doesn't mean you should jump right in to a 200 minute total run time dive immediately after training just because you have a card that says you can. Same with full cave, just because you are allowed to go wherever you want, doesn't mean you should strap in and go 5000ft back in a cave right after training. The PADI and SDI/TDI system are frankly insulting and borderline criminal. They're for profit agencies, I can't fault them, but they do not have the divers best intention at heart, they are focused solely on profit, and you can't deny that.

There are two reasons for the training wheel, babystep courses. You don't provide adequate training at the lower levels, so you have to have 18 different classes to cover all of the material. Or you aren't allowed to fail students who don't have the right "mental state" and if they demonstrate all of the skills, you have to pass them. Either way it is the fault of the agency for not providing you with the tools to provide adequate training at the lower levels. PADI proves this with how insanely easy it is to become an OW instructor, so their OW course is 100% useless for technical training, or allowing you to fail a student based on you not trusting them not to kill themselves. If you have a student taking full trimix, and you know it is only because they want to go dive the Andrea Doria the following month, and only have a few normoxic dives behind them, should you certify them? I wouldn't. If you have someone taking full cave because they want to go into Eagles Nest that summer, do you certify them? I sure as hell wouldn't. If you have someone who gets thru deco procedures and you know they're only doing it to start doing really long dives, but just need the card to get O2 fills, do you certify them? I sure as hell wouldn't. If you can't pass that judgement, then you need baby steps to frustrate them to not spend the money, but your description above just gives PADI more reason to go by their alternate name of Put Another Dollar In.
 
I took the PADI course and we covered everything needed to understand how partial pressures work and the various risks of breathing higher mixtures of oxygen, which is what you need to know for Nitrox training. Tech diving doesn't really change things much, you just concern yourself more with limits of exposure.
 
At Devon, you say I don't understand progression, you are right, I don't understand why PADI doesn't think that divers who are wanting to get into technical diving can't limit themselves, or think they will actually abide by those limits. PADI breaks it down too far, you can either do staged deco, or you can't. It's literally that simple.

I'm not sure what I'm failing to communicate to you.

Tec40 is a cross-over between rec and tec. It teaches technical diving basics, but limits the consequences of failure.... assuming that very novice technical divers can still make mistakes.

In respect to level, no. dives and training time, it is equivalent to Advanced Nitrox (only). Tec40 offers FAR more scope of diving, post-qualification, than Advanced Nitrox does.

It also offers a PAUSE in progression.... for those divers not yet ready to do meaningful decompression. Those divers who might harm themselves.... HINT: There are a LOT of entry-level technical diving students like that.

With TecRec, you can pause progress and let students remedy deficiencies before they take Tec45. In the meantime, they can do very 'lite' technical dives with all the correct equipment and procedures.

AN/DP is typically done in combination (i.e. the same as Tec40/45 combo). That creates a very 'all-or-nothing' scenario. You either get qualified to dive 'full tech' or you go home with your thumb up your a$$.

Hint: 'All-or-Nothing' scenarios encourage over-qualification of students, because some (many?) instructors are disinclined to send students home with zero to show for their time and effort.


If you can't, don't do it, but you are defending a system that is designed for profit not to produce quality diver.

I'm disagreeing with you. I think this is nothing more than an ignorant agency-bash.

I teach TecRec.... AND other agencies/syllabus. I find TecRec especially beneficial in developing good quality students. Most importantly, I don't 'need' to accept bookings for Tec40 AND Tec45 combined. I can say... "do Tec40, and lets see how you get along.."

From that Tec40 course, I have 3 options:

1. Issue no qualification and counsel remediation.
2. Issue Tec40, but counsel remediation before attempting Tec45
3. Issue Tec40 and counsel progression to Tec45.

You are far too entrenched in the PADI mindset that people need training wheels.

I'm a tech instructor. I trained initially with TDI. I teach TecRec. I also teach ANDI. I also taught BSAC and SSI. I've trained with other agencies. I've dived with elite level tech divers from varied agencies.... most of them, I think.

I'm not entrenched in anything.

You want to know my beef with PADI? It's that the recreational programme fails to prepare divers to enter technical diving. It's a failure on fundamentals development.

That doesn't mean TecRec is weak. Those same weak rec divers could just as easily apply to take a TDI program... and perform just as badly.

What I'm saying is that Tec40 is a great starting point into technical diving. It's meaningful and complete training.... but it's limitations in scope acknowledge that novice technical divers can make mistakes.

It's ridiculous and you can provide no meaningful justification for it other than to make the agency and instructor more money by teaching more courses.

You are spouting a stereotype. It's a sad agency bash... nothing more, nothing less.

Personally, I'd question if combining AN/DP for a total of 6 dives is more about money-grabbing and low quality than combining Tec40/45 with a minimum of 8 dives.

Since when did handing out plastic for absolute minimum in-water time become an argument FOR quality? LMFAO....

It used to not be like broken down, it has only started being broken down in recent years when mentoring became frowned upon because it doesn't make people money, so now we have to have course to cover all of the things that aren't fostered through proper initial training, and then a gradual progression through more technical areas with divers that are better than you.

I don't get your point.

Someone comes to learn Tec40. They take X dives to reach the performance standards. X is determined by their starting competency and speed of learning.

Where does that preclude mentoring or good instructor-student interface?

YOU are assuming that all TecRec courses are taught to the barest minimum of dives, by instructors only seeking to cycle through courses as quick as possible, uncaring of student performance.... and will push them into subsequent courses to rectify deficits in ability.

That's a silly agency bash. .... especially from someone who just boasted that AN/DP can be done in as little as 6 dives.... 2 less dives than the PADI equivalent... Tec45.

The PADI and SDI/TDI system are frankly insulting and borderline criminal. They're for profit agencies, I can't fault them, but they do not have the divers best intention at heart, they are focused solely on profit, and you can't deny that.

Here's your mistake.... you confuse the agency with the instructor. It's the instructor that counts.... it's them that determines the quality of the student certified.

..... and not all instructors... especially at technical level are focused solely on profit. And even if they ARE focused on profit, that profitability.... AT TECH LEVEL.... is often rooted in garnering a quality reputation.

Tell ME that GUE instructors don't care about the money they earn. The agency might not be 'for profit'.... but the instructors care just as much about their income as any instructor, in any agency. FFS.... GUE courses are the most expensive on the market.....

There are two reasons for the training wheel, babystep courses. You don't provide adequate training at the lower levels, so you have to have 18 different classes to cover all of the material.

So.... if a recreational diver went to learn Tech 1 from GUE.... how many courses do they need to take? How much do they need to pay?

GUE has fundies.... a BABYSTEP course... as you say....to cover inadequate training at lower levels.

In contrast.... I'd say it was a PROGRESSION. A step before divers embark on training (Tech 1) they might fail... or if they got that qualification...might then kill themselves due to too-weak competency.

Are we gonna say Fundies is a rip-off course... unnecessary.... because it doesn't qualify the diver to do decompression diving?

Are we gonna say Fundies isn't needed as a remedy for recreational training not giving baseline core skills for technical training?

Are GUE recreational trained divers exempt Fundies because they're so awesome? No.....

Or you aren't allowed to fail students who don't have the right "mental state" and if they demonstrate all of the skills, you have to pass them.

100% incorrect. The TecRec manuals specifically state that mindset is a pass/fail criteria. They also encourage instructors not to pass unless absolutely sure the standards are met.

PADI proves this with how insanely easy it is to become an OW instructor, so their OW course is 100% useless for technical training, or allowing you to fail a student based on you not trusting them not to kill themselves.

Again.... assuming the quality of OW training. An agency bash.

Tell me one single agency where OW / entry-level rec training prepares someone for technical diving.... without need for progression and confirmation of skill-set.

Again.... PADI TecRec specifically directs instructors to fail students who (1) don't demonstrate the correct mindset and (2) don't demonstrate the correct skillset.

I don't know where you got this idea about "cannot fail students" from.... but let me assure you it is your personal fantasy, not a reality.

If you have a student taking full trimix, and you know it is only because they want to go dive the Andrea Doria the following month, and only have a few normoxic dives behind them, should you certify them? I wouldn't. If you have someone taking full cave because they want to go into Eagles Nest that summer, do you certify them? I sure as hell wouldn't. If you have someone who gets thru deco procedures and you know they're only doing it to start doing really long dives, but just need the card to get O2 fills, do you certify them? I sure as hell wouldn't. If you can't pass that judgement, then you need baby steps to frustrate them to not spend the money, but your description above just gives PADI more reason to go by their alternate name of Put Another Dollar In.

You are just plain wrong in your assumptions. Would you care to amend your stance?

Direct quote from the PADI TecRec Tech Deep Instructors Manual:

No instructor is required to accept a particular individual into a scuba course (provided the basis for not accepting someone does not violate local discrimination laws involving race, gender, etc.). In deciding whether it’s appropriate to accept someone into a technical diving course, or to have someone continue in a course, the following points are worth considering:

1. What comfort level does the individual demonstrate underwater? Technical diving imposes task loading and higher potential risk, particularly in deep diving when gas supply and decompression may create significant time pressure. The consequences of a problem have a higher probability of being more substantial than within the recreational envelope. A candidate for technical diving needs to be able to control emotions and put aside anxiety in the face of problems and task loading. An individual who demonstrates undue stress during exercises, a tendency to over react, or inappropriate emotional reactions may not be ready for the psychological and/or physical stresses of technical diving. The clues might include an inability to perform simple tasks
that they handled easily under “relaxed” circumstances; unnecessarily hasty or forceful responses to simple problems; irritability or anger in the face of minor obstacles, etc.

2. What skill level does the individual demonstrate? Recreational diving principles, procedures and motor skills are foundational to tec diving and need to be second nature. An individual who’s still mastering the fine points of recreational diving is not ready for the higher skill and knowledge demands of technical diving.

3. What is the individual’s physical fitness? Compared to recreational diving, the physical demand of technical diving can be much higher, especially before and after the dive, and during the dive in current or any other situation requiring above normal exertion while swimming. This means more load on the legs and cardiovascular system. There’s substantially more equipment, translating to higher effort necessary to move the mass and increased drag. Technical dive duration frequently requires heavy exposure protection; laden with tec gear and a full exposure suit in a hot climate predive can risk overheating and significant cardiovascular
stress. For all these reasons, DSAT TecRec courses require a physician’s approval prior to Training Dive Two in the Tec 40 course and before all other subcourses in the Tec Diver course.

4.What is the individual’s attitude? Compared to recreational diving, tec diving demands greater self discipline in dive planning and preparation. It calls for adhering to plans and following procedures closely, repeatedly and strictly, refusing to shave safety margins for convenience. In the face of a missing or broken piece of equipment, poor conditions or simply not feeling well, it may mean being willing to abort or cancel a dive despite peer pressure, inconvenience, and expense. Some individuals have the physical and intellectual capacity to tec dive, but lack the self discipline to apply what they know they should do consistently.

Note: That is just to ACCEPT a student onto a course....

How about this directive, concerning pre-course assessment and remediation:

Prerequisites for the DSAT Discover Tec, Tec 40, Tec 45 and Tec 50 programs establish the minimums for entering each. It is your responsibility to ensure that the student meets the prerequisites, through remediation if necessary, before starting the particular program.

How about this definition of skill mastery.... which IS different from recreational diving:

Skill development mastery is defined as performing all skills (procedures and motor skills) fluidly, with little difficulty, in a manner that demonstrates minimal or no stress. You may allow for the task loading imposed in each situation when
judging stress, bearing in mind that student divers need to perform all routine and emergency skills and procedures in a manner that leaves little doubt that they could reliably perform them as required when diving independently.

For certification, the mastery requirements extend to all recreational diver skills and procedures that are prerequisite to this course. For example, if a student diver performs all Tec 50 course skills to the required mastery level, but cannot clear a mask to this level (even though acceptably for a novice recreational diver), you must remediate the diver in that skill before certifying the diver as a Tec 50 diver.

....and then you imagine that TecRec instructors don't assess mindset.... so here is this:


For certification, mastery requirements extend to the attitudes students demonstrate. Student divers must display attitudes consistent with accepted technical diving team diving practices. With respect to the Tec Diver course, attitude may be
defined as the predisposition to make a choice. This is because there is a difference between, for example, demonstrating the ability to follow a proper predive safety check and actually using that ability as a certified diver apart from training.

While you can assess whether divers can do something and whether they do it during training, you cannot assess with certainty whether they will do what they’re supposed to when they’re no longer under your supervision. Ultimately, that is each diver’s responsibility. Nonetheless, you can assess the attitude divers display during training. Students who display a dismissive or otherwise negative attitude toward any of the planning, equipment, procedures or general self discipline and team diving required by technical diving do not qualify for certification and may not be certified.

So..... you've seen the standards. Prepared to reconsider your assumptions?
 
don't need to reconsider. We agree. The babystep program is because of inadequate preparation at the recreational level. Fundamentals I don't agree with as a requirement for GUE trained divers, only as a recommendation to verify skills. I think fundies is the best intro to tec program in the industry, but only required because of inadequate training at the recreational level and a breakdown in the mentorship style of learning how to dive and grooming people into that level of diving.

Regarding tec40. The real reason I think it's a waste? Because I think NDL diving is ridiculous. The agencies should allow 5-10 minutes of backgas deco at the recreational level. Why? if you run the PADI RDP or you run a computer with conservative GF's, you will have mandatory deco on one, and not on the other, same run times. Only a difference in conservatism.

If you are allowed to fail based on mental state, which I was only stating as a potential reason, not as one that you were required to do, I know PADI has that failsafe, unfortunately not enough instructors use it, but that's besides the point, then why do you still need babysteps? Why do you need a separate course for Tec45/50 where the difference is only one vs two staged deco gasses? Is it really a meaningful enough difference to justify a separate course?

You say that I'm being ridiculous with AN/DP being 6 dives vs PADI being 8 dives. I don't think you need 8 dives to teach single staged decompression if you are prepared BEFORE the course. If you do it as an intro to tec, then you weren't adequately prepared coming in, and probably shouldn't doing those kinds of dives yet, see your reason above as intro to tec. This is my same beef when people use cavern/intro as their intro to tec course. I was blessed and cursed with proper training from OW. I came out of my cave courses wondering why people thought they had their ass kicked, then I realized that it was because they didn't have solid fundamentals before they came down. What does this mean? Instead of teaching meaningful things for the class you are supposed to be taking, they were actually learning the fundamentals of diving that happened to occur in a cave. Tech training is the same thing, how much easier would your life be if people were already comfortable in their rigs, knew how to hover, back kick, flat turn, do S-drills while maintaining neutral buoyancy/good trim, etc. and then you were able to actually teach them proper deco procedures. If that was the case, you wouldn't need the baby steps because you would actually be able to teach the course you were supposed to be teaching instead of having to always be playing catchup because you can never get ahead due to piss poor instruction at the recreational level. Same issue with AOW, it's 100% useless to take except being a mandatory prereq for advanced levels. Why? because they needed to make an "easy" course for OW so "everyone can dive". It's complete crap
 
So, basically.... 99% of divers should train in preparation for technical diving because 1% of divers might wish to progress to technical diving?

That... of those 99% diver who'd never intend to technical dive... a vast number would be unable to take scuba training due to cost or time limitations caused by the necessity of adding technical diving development into syllabus?

People are likely to start with GUE etc BECAUSE they intend to progress to tech. So all training begins "with the end in mind".

People don't start with PADI because they have some wild aspiration to tech dive. They just want to dive.... (and besides.... who in Hell starts diving from day #1 intending to go tech?!?)

Whilst I think we both agree that recreational training could be much more robust.... I think it's insanely short-sighted to think that recreational divers should all train in the expectation of eventually technically diving.

Progressive development.... sure. There needs to be stepping stones. Not 'for' tech... but simply to improve skillfulness as the recreational program progresses.

Prerequisites should BE prerequisites... not just plastic cards... but should supply prerequisite skills. For Tec40... that'd need Deep Diver to hit a much higher standard of skill.

As for Fundies... it's an awesome concept.... and I wish EVERY agency introduced such a benchmark prior to technical diving. The simple fact that it is assessed...pass/fail.... focuses potential technical students on the need to spend time and effort developing their own skills.

PADI wouldn't need to have a Fundies necessrily.... they'd just need a strict pre-training assessment with publicized performance standards in core 'fundies' skills. That'd see a lot more tech wannabies doing some pool-time before rolling into the tech-center with their credit cards out...

I've taught GUE and UTD qualified divers and all have good core skills (not necessarily all-round diving 'smarts'). Students from other agencies are a lottery (unless I,or someone good I know, taught them).

But how can you criticize Tec40, when it can perform a similar function to Tech Fundies.... a pass/fail boundary between recreational diving and 'meaningful' technical decompression?

Neither course qualifies the diver to potentially kill themselves afterwards. Both teach team diving, gas management, deco principles and improve core skills to technical level.

Both courses, once passed, are a gateway to 'full' deco training and qualification. What's the issue?
 
we'll just have to agree to disagree on that. I don't see any room for baby steps. There are certain leaps that have to happen. Fundies is that leap. PADI tries to break it down so you get motivation to take another course because you can do just a little bit more, even though you would have been better off in the beginning if it had been taught properly in the first place. Once you take intro to tech, there should be no more discussions about trim/buoyancy/propulsion. If you don't have that mastered, you shouldn't move ahead. Because of that, there is no room for progression and that, regardless of tech vs. rec should be mastered before you get into intro to tech. That's the point, there are actually no real skills that need "progression" of learning, you can either go backwards or you can't. You can't "sort of" go backwards. You can either hover while doing an s-drill, or you can't, there's no room for "sort of" with this type of activity. The progression should happen at your pace after you have been taught all of the requisite skills, not being held back because the agency thinks they need to hold your hand. I get the tecrec program in theory, If they made tec40 a more robust course and removed the stage bottle, fine, no problem, but I truly don't believe you can fix the problems they have coming in as far as completely new gear and 99% likely they don't have buoyancy/trim/propulsion mastered in 4 dives, add on top of that discussions about decompression and stage handling/gas switching and it's too much too fast. If they had it in 6-8 dives, fine, but you can't teach a fundamentals of technical diving course in 2 days and not have to be constantly going back in the next set of courses to refresh everything else. The skills above should be mastered before tec45 and that's not something that is required with hand holding baby step progression because the agency doesn't trust the students, or their instructors to actually hammer it in
 
Now, I must say, that is impressive. I am not sure I would have thought of including work on trim, buoyancy, propulsion techniques in a nitrox course. But, it apparently worked for you and the instructor. It does sound a lot like what some people would include in an Intro to Tec course. Nonetheless, it does amplify the point that finding the instrcutor who will take you where you want to go is more important than relying on an agency label.
I really hesitate to wallow around in the quagmire that this thread has become but I have to ask.

Colliam7. As an instructor, if you don't at least touch on these foundational skills, just what do you do during the 4 dives required by AN?

To tbone. Looking back at your AN vs DP list, clearly I did get my money's worth with my course. I noticed that DSMB is on the DP list and yes we did that too. Did he actually teach vs have me demonstrate? Clearly much of it was just review. But it was covered at least to some degree. Remember, there is overlap between AN and DP. That is why less classroom and dives are required for the combined course. So looking at it this way, when taken separately, the student actually gets more instructor time and dives.

Yes, it was an excellent course but was it DP? Of course not. Dive techniques were only covered in the most superficial manner, problem solving was minimal and of course no deco dives were done. So no my course was comprehensive but still clearly a AN and not DP course. I did not mean to imply otherwise.

But maybe, just maybe, the AN course really is a worthwhile course in and of itself. For the right individual. And that's the beauty of so many options, each diver can decide for him or herself the best course for tech progression.
 
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