| I think it would not be possible to get empirical evidence as everyones physiology is so different as are the other factors involved - previous diving, fitness, hydration, exertion, familiarisation, stress etc. Try DAN for info.
In an ideal world you would try to eliminate the Nitrogen as fast as possible while balancing this with toxing on too much O2 and too many deco tanks.
If I were you id get some deco software and simulate a simple dive and then compare lots of different mixes and see how that affects certain things like:
Run times
PPO2
CNS
OTU
Gas switches
Stop depths.
Number of tanks
Narcosis
Surface conditions
I have found on my typical dives on Air to about 50m a deco mix of 70% give me the shortest run time and most flexability. For deeper stuff on trimix it gets more complicated and there are lots more things to consider and lots more opinions to think about. |