I HIGHLY recommend NITROX due to the deeper nature of the dives and the 32/30 NITROX mix allows for longer bottom times at deeper depths.
The words "deeper" and "NITROX" do not belong in the same sentence. Recreational diving, you can do 130 FT on Air. NOAA NITROX I (EAN 32) has an MOD of 111 FSW; NOAA NITROX II (EAN 36) max is 95 FSW, recreationally.
As a tech diver, I can do 220 FSW on Air. With EAN 32, I can do. . .132 FSW. At any greater concentration of O2, my PPO2 is gonna be higher at any depth than it would be with regular air, which is why I still can't ever go "deeper" on NITROX than I could on Air, for the same level of training.
I'll put my soapbox away now, but it really bugs me when people (especially NITROX-trained divers) put out this ridiculous "deeper" gouge that is patently false.
Longer? Absolutely true.
Deeper? Absolutely false.
Yeah, that's what I meant. Personally, I also enjoy less of an "Air hangover" due to the higher O2 %...that may be all mental, but it works for me.
Totally agree. I know some people don't believe it, but I absolutely feel the difference once I surface, usually in my grip strength when opening the DIN valves to swap tanks after dives.
As an odd aside, significant amounts of peer-reviewed research have been done into the beneficial effects of elevated PPO2 on libido and virility. That never makes it into PADI's marketing materials, for some reason. . .