solocavediver

We wonders, yes we wonders. I have known cavedivers who would accelerate their deco by using questionable PPO2 (>1.6) to keep the oxygen window wide. That would do the trick I suspect, especially on VPM, though it's more dangerous on rebreathers because O2 and CO2 combine to damage you. Or, VPM deco with 0 conservatism can be scarily fast on ascent. Or, if they actually have dive computers which know their exact profile, and are running VPM or similar, a small change in the profile can make a big difference to the predictions. Or maybe they are just cheating; or maybe they are intelligently cheating because they have done this sort of dive before and know that they can get away with VPM conservatism of -3 or whatever.....

I wonder.