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String: "A missed safety stop statistically isnt more likely to give you DCS than completing it." I would be interested to know how you have come to that conclusion. String: "There is a big danger here of confusing arbituary safety stops with mandatory deco stops. They are totally...

You forgot the cold that will sap all your energy and leave you swimming like a speared fish, which is what attracts the shark. And the exhaust you'll be breathing on the surface even if you managed to deploy your snorkel, if you had one, on account of that face-down floating rig you wear...

I agree with Jonnythan that this is good news. Of course the instructor should spend some time with the student to help them master the skill. But you should be paying for the instructor's time and expertise whether you learn the material and skills or not, so you pay for the class even if you...

"If you don't mind explaining, what, precisely, was his "unusual heart/circulation" problem?" There are conditions that make a person more susceptible to DCS, such as PFO (which is not exactly rare). https://www.daneurope.org/eng/cadintro.htm "Patent Foramen Ovale is not a disease, but...

Just wear the mask around the house for a couple of hours and you won't have any choice about breathing through your mouth. Add the snorkel. Exhale forcefully into the mask every once in a while to see where the air escapes (if you don't have a purge valve) and to practice what you will do to...

I don't know. If you had some of them made up in a nice, sturdy 1050 denier ballistic nylon, I might want to try it out. Hell, what have I got to lose? I'm already packing a snorkel, so I'm practically dead already from breathing all that exhaust. But I'd prefer basic black; I don't want to...

To ballpark it: The difference in density between salt water and fresh water is about .025%, so the fresh water you and all your stuff will displace is going to weigh about .025% less than the same amount of salt water. (In order to get completely submerged you will have to displace the same...

I started diving with a bunch of ScubaPro gear and always loved their stuff. In fact, I just found an old SP depth gauge that has been carefully stored away for ages with some other stuff of historical interest only, and am wondering whether I should take it down to the sea and try it out, or...

*If* the facts of the Uwatec Aladin dive computer case are accurately described in the article posted earlier, that suggests one of the most egregious cases of manufacturer misconduct I could imagine. To design a nitrox computer using software that assumes you are breathing nitrox during your...

My only suggestion would be *don't* be in too much of a rush to buy your own equipment. Spend a lot of time thinking about what kind of diving you are interested in doing, ask people in your area what they use, search around here (and elsewhere on the internet) for information about the stuff...

I would ask a couple of questions: (1) Who is going to wear it in the water? and (2) What choice will make a new diver most comfortable (easiest to handle) in *and* out of the water? People can learn to dive with and get used to just about anything. I started out with a horse collar vest...

I am cross-posting this from the "other" thread, because this one has more people participating in it: Originally Posted by Stirling: "Would it be misleading to say that changes in body fat % affect off-gassing by a certain amount, without also explaining that [some other variable or...

Originally Posted by Stirling: Would it be misleading to say that changes in body fat % affect off-gassing by a certain amount, without also explaining that [some other variable or combination of variables, such as exertion, poor circulation, effects of warmth or cold, age, or whatever] affects...

"If I had been deeper than 76 ft 41 min you would recommend not doing 3rd dive 2 hours later?" I don't think I could make *any* recommendation without being there and knowing a lot more than I do. If this was your *second* dive to 76 ft 41 min, what was your first, and what was the interval...

I just went back to the top of the thread to get clear about the exact fact situation that started the discussion. I think there is a chance that people are starting to talk about different things here - (1) the protocol for a missed stop for a diver who has no symptoms and who has *just*...

pilot fish: "I think bad things CAN happen to you if you miss those safety stops." *Of course* Pilot Fish is correct, because bad things can happen to you even if you DON'T miss those safety stops. Bad things can happen to people who do everything exactly right, and that is why those...

"the models were done on people with an average BF of x%. As BF increases the off-gassing ability of your body generally goes down by n%. ..." Would it be nice to have that kind of information available? I suppose, if it were reliable and actually useful. But I don't know if all of the data...

"My hope is that I could find something that would fit comfortably now, but I could use a boot down the road." Maybe I'm not understanding exactly what you're saying here, but I don't know how you could get a fin now and boots later and have a good fit now without the boots *and* later with...

"This was a response to a recient private message when asked about issues with the PRISM ..." I can't say whether that is true or not, but it seems to me that if I had received a "recent private message" asking about a piece of diving equipment, I would have answered it in private ...

The only case I have handy involving a claim against a manufacturer (as opposed to dive operators, captains of vessels, etc.) is Thornton v. Sea Quest, 999 F. Supp. 1219 (N.D. Ind. 1998), which is principally concerned with a choice of law issue - as I recall (because I didn't bother to go back...