GrumpyOldGuy
Contributor
No real argument from me. Personally I do the math and then check it against a rather long history of actual dives, so I know precisely how much gas to allow for ascent. It's mainly allowing a buffer for stress and a buddy that adds some guessing. Dive plans can be as simple as max depth is xx, turn at xx and ascend at xx . The can also be as complex as you want.
The question arose from a suggestion the nitrox was safer because you are more likely to hit you gas limit before you NDL limit. I threw a flag suggesting this was not good planning because it variable depending many other items. Personally, I almost always hit NDL before gas unless its a shallow shore dive. My thoughts are if you need a buffer on NDL, plan it. By keeping your computer out of the caution zone, you are essentially doing this.
Not everyone agrees with me, no problem.
The question arose from a suggestion the nitrox was safer because you are more likely to hit you gas limit before you NDL limit. I threw a flag suggesting this was not good planning because it variable depending many other items. Personally, I almost always hit NDL before gas unless its a shallow shore dive. My thoughts are if you need a buffer on NDL, plan it. By keeping your computer out of the caution zone, you are essentially doing this.
Not everyone agrees with me, no problem.