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I am both an engineer and an adventurer - why can't you be both? :) We coined a phrase while we were floating next to a capsized boat in the middle of the South China Sea - "A Great Adventure is not always fun while it is happening" - HA!

Gary Gentile has some good stuff out (did I spell that right?). Two obvious choices are The Last Dive and Shadow Divers too...

This is not a bad dive plan IF you have support divers who can bring you gas if you have a lost gas situation. Your Back Gas volume is okay, your PPO2 and END are okay. You have to assume that you will not have the O2 if it is hanging though (you would do two profiles for with and without) and...

All babbling aside - here is an answer to your original question: If you are talking Open Circuit with a large pair of doubles on your back (ignoring additional stage bottle capabilities) the bottom time is very small - 10min. This includes descent time and results in the usage of 150 cuft of...

As far as variance in stops, I teach and dive within 2 feet during air/nitrox backgas diving. When we get to helium, we shoot for 1 foot. I know that is very precise but that works better for us. In reality, you are diving your plan but you are hopefully backing up your plan with a computer...

Totally different effects. That's why they call the drysuit effect a "squeeze"

:rofl3:

:rofl3:

Keep in mind - unless you are a major hoover (and that is a whole separate issue) with more gas you will now be NDL limited, which means maybe you should start checking into some tec training.....

I would suggest renting a few different types from a dive shop if you have the ability in your area. Here's some feedback: AL80's - nice and light but less air than other steel higher capacity tanks. Underwater, lighter weight can be bad though = more weight on your body. Steel LP Tanks -...

Okay there is obviously an issue with the word "Luck" and "Death". Would it make more sense if I wrote "Even a well planned and executed dive can have something go wrong that is beyond the diver's control" ???????? It's just like anything in life - when you drive to work, you can be safe and...

You guys don't get it. This is not trying to scare you our of your Scooby Doo pj's, it just means pay attention, be wary and don't take stupid chances.

I'm not even going to waste my time with this post. You're right genius - you know everything, can control everything and are the master of all you survey. You would never have a ceiling collapse, an equipment failure or anything else happen to you....

Not judging or anything else but I am wondering what makes you want to switch to the neck hung backup and the long hose?

Had a CO2 breakthrough during deco after a body search at 150ffw. Bailed out and finished on the BoB and off-board deco gas...

Had a CO2 breakthrough during deco after a body search at 150ffw. Bailed out and finished on the BoB and off-board deco gas...

Any time you are dealing with an environment that you cannot control and situations that can change without stimulus from the diver, luck is most definitely involved - especially if you factor in a reduced level of training or experience. First page of the DSAT Technical book - "In technical...

Gotchya - like I said certs won't save your life - training will.....

You said that you don't think formal training is required but then you said that a lot of these skills can be learned in a technical course.....? Assuming that someone is just going to figure out what to do when they get deep inside a wreck is pretty silly. Training can come from related...

I believe that is the point he is trying to make.................