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I'm going to expand and clearify some of my points and views since i get quoted out of context..... In my own experence with this (which is very limited as I'm just starting into courses taught by IANTD) is I've still not gotten privileges to go deeper that I haven't before. And yes I have been playing it by the official standards. I got the Basic Nitrox and I've used it for my own diving almost exclusively since I recieved it. Most of that diving has been between 70-100ft. Deep Air/Adv Nitrox was the next course on the IANTD diving list. I've gone through the classroom and have almost completed it. The deep dives for Deep Air have been conducted at 120-130 ft. and on air. I've been narc'd in the water up here and it would of been real nice to be on 28% mix. I've done deep diving before and taken the PADI Deep specialty. So, Deep Air/Adv Nitrox for me is mainly a rehash of my PADI deep, rescue, Divemaster, and IANTD basic Nitrox. The difference is the toys. I've spent to the dive shop glee better than $3000 for twins with new reg's stage bottles, and the like. Reels, lift bags and time in the water to be indoctrinated into the Tech practices as well. $400 to be taught how to deploy a lift bag for deco isn't real sane. I would of been much happier buying the toys and have some privilege besides. Maybe to George that's ego gratifcation, but, I'd be happier. My problems have all been with the new equipment. Just a shake-out with new twin tanks, a little lift bag practice and I'd have had all the skills to do dives to 150 or so with limited decompression. That's still to me a course away, if I continue to follow the path. BTW, under IANTD, I'm still not a tech diver. Haven't taken a tech diving class. One of the recurring themes in the tech community, is self knowledge and reliance. Would it not serve people better just to offer a set of skills classes and not put standards out there? Just relie on the ability of people to judge their own skills and offer training for where they are at. That way the communtiy could adapt best practices as they are found. Having these commercial/scientific practices out in the open, should result in safer diving practices. But if we end up institutionalizing it in the "classic recreation" diving agency way have we will lock people out practices they should be using. And to me the advantage of techie knowledge is these practices being used for safety's sake, not hidden. I can even take the abuse on the net, if people in their messages say something worthwhile. My example of using tri-mix at 160-180 ft is a good one. I'm locked out of that until I've gone through a lot of classwork and dives, I may not really need if I have just a couple skills. At the moment, it's going to be about 1 year before I can take that. A TDI instructor just may give me that sooner. I may go that way. Being indoctrinated by PADI, maybe I feel guilty about short circuiting the path, but I very well might.
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