Bob DBF
Contributor
I did not say "if I don't, nobody does". What I said is you may be wrong in your generalizations. I'll be convinced by results of a blind (or even better, a double-blind) test, supported by of fatigue actually measured after dives.
Well the problem is that what I and others call fatigue after a dive is not what the last study I saw considers fatigue. They did however find in their double blind study that divers felt better after the dives after diving nitrox, but attributed it to less decompression stress rather than fatigue. Since it was not the focus of their study it was just an interesting bit that they stumbled upon, but was the result of a double blind study.
Measurement of Fatigue following 18 msw Open Water Dives Breathing Air or EAN36.
Another discussion can be found at Why Nitrox? and it is only 5 pages.
The chances of a double blind study to answer this question is rather slim. Most have made up their own minds from personal experience and the study would effect few. I don't use Nitrox for a three tank day, but multi dives on a multi day trip makes a difference to me. As I get older it makes a more noticeable difference. Whether it reduces fatigue or decompression stress is irrelevant to me as I feel better.
Bob