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>Bill Mayne wrote: >I'll skip the details of the dive plan, except to say that I switched >from air back to nitrox when I turned the dive at 80 feet, 40 minutes >in. The point of this story is that it may have been psychological >(placebo effect or just the reduction in task loading once the decision >to turn the dive was made), or it may have been the reduction in the >already minimal, unnoticed narcosis, or the extra oxygen (doubtful, >switching from .71 to 1.21 ATA), but I felt noticeably better. I'd like to back Bill up on the subjective experience of using nitrox. I mainly use nitrox for multi-level shore dives to 30m. Even on these dives I certainly feel more clear headed when using nitrox. On deeper dives to 55m using air, but with EANx40 on stops below 6m and O2 at 6m and 3m last year I found I felt significantly better after those dives compared to doing them in the past on air alone. By "better" I mean I was less fatigued after the dives. The deco times, too, felt "better". This seems to be the experience of the others I dive with who use nitrox. What have others found? Greg Ryan gregr@cs*.su*.oz*.au*
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