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No, and I won't do it for myself. The reason is that I am already a full cave diver (and instructor), and when I did the cave diver course, there was no advanced wreck course. The cave diver course was the highest level you could get for penetration. Then the course was written and divecenters...

Exactly. But now it is waiting till someone writes: 'Do a course, then you will get the answer, you don't know what you don't know'.

I know some divers that need 15kg of weight in winter when using a drysuit+ 490 grams underwear+200grams heating system. But then this is not the water were the Avelo is designed for as it is written warm water, wetsuit. But on average in drysuit it is 10kg with a steel tank on their back...

I completely agree. I don't need any expensive instructor if I want to buy or try sidemount equipment (it is optional), and with a good manual I am sure I can dive it without any problems or difficulties. I need 5-10 minutes maybe to get a proper weighting and then you can go. You also don't...

Yes, I don't want unsharp pictures of course.

I never heard that oc divers don't buy enough gas. In Germany it started: they said they don't earn enough from ccr divers, so that made a minimum price for a fill of oxygen or trimix. They said they have to screw in the same hose for filling, so it is a difference if that action will earn for...

I never did a photo class, but I think I know where I am talking about, have been to the world championships underwaterphotography. Yes, that setting is the best. It has the maximum distance (from narrow distance to infinity) to use it, but the biggest chance for shunting. The 0.4 is for...

I have the 60mm lens (I never use it), the 45mm from Panasonic (my favorite on my olympus camera's), and the 30mm (sometimes in use). The 60mm is a pain in the ass to find your subject sharp, it starts shunting all the time in dark waters. The 45mm and 30mm are way much faster. With the 45mm...

If you only want to go to 40-45m, then you don't need trimix in most cases. And for sure not a ccr. It is nice to get a trimix cert that you can dive trimix if you really want, but there in a real world you won't do trimix diving on such 'shallow' depths. A ccr is a nice tool. I also have 2 of...

I will put some oil on the fire. The problem with the ow cert and also aow is that they state you are allowed to go to 40m, but not trained for. And here the big big problem starts with divecenters. They don't think you can do the training on your own. In every sport you can do and progress as...

I have seen this watch today for the first time, including a tankpod. It is quite small. It is nice that you can see where you have been diving (it tracks the way you take). But it can only be used to 60m (7 bars). So then it is a very limited watch with dive options. This means it is no...

AOW is only 5 dives, so 2 days and you are ready. This is the easiest way. Tell them you want to do the easiest way and it will be no problem. Do it somewhere were they only do shoredives, this will reduce the price. Officially an ow cert is already a 40m cert. Nobody tells you, but you can...

Hmmm, I already did several times to students ;) I really like Molykote for ccr's.

And no problems with swelling Orings? Great to read. The bigger amount of Olympus grease is not available in my country, it is not on stock in shops. Even not over Olympus directly. But also, 55 euro for a small container, this is ridiculous. And about flooding: the grease will not flood the...

I have a TG6+housing and have used till now the olympus grease. But, and this is a very big but, this is soooooo extremely expensive for such a small amount that I want to use other silicon grease. I know, not all silicone grease is the same and some will make the Orings longer, bigger, etc. But...

You can do fundies with single tank, but bp+wing is required, longhose also.

I will put some oil on the fire and will say no, it will not help you further. Why not? This answer is easy, a fundies course (or intro to tech, or essentials from iantd) will not give you a cert that brings you deeper or further in a cave. And you also have already nitrox, so this is also not...

Only in rebreather literature I have seen the EADD, the equivalent air density depth. Not in OC literature. A ccr breaths heavier, I can feel this. But there is also a big difference between the brand of ccr's or regulators (some people think that a heavely breathing regulator lowers...

And you think the avelo is?

yes, you can do all the skills needed for cavern in open water. Then you have daylight, so it makes it all easier. But the skills are most times not teached in any open water speciality. Only in an overhead specialty like cavern or wreck. Normally cavern courses start with an open water session...