I'll say first that I have not read all the posts in this thread but enough I think to get the gist of the "arguments" The bottom line with dive training today is the simplification or "dumbing down" if you will of the education process, by all agencies. All diver know, or they should, that you use your air faster the deeper you go. How many divers can tell you which gas law gives you the principle behind this fact? Does it matter when you are diving if you know the proper name of the gas law or just the concept? ... Probably not. I have worked with and dived with divers and instructors from many training agencies (PADI, NAUI, SSI, YMCA, IANTD) and have seen good and bad from all of them. If you actually read the RSTC standards for open water they are pretty basic and generic. The quality of instruction lies with the quality and commitment of the individual instructors. People may chastise PADI for their commercial and marketing approach, and the idea that they nickel and dime, or $10 and $20, their students and instructors to excess, but they have put a lot of R&D into the teaching materials and methods. It is interesting to see that most agencies have emulated in some fashion the modular design, and teaching tool developed first by PADI. And for instructors, the redundancy of material covered and standards for paperwork and documentation, make sure they are covered legally. I ask you how does it make sense, even in today's litigious society that a diver certified for years with a few hundred dives can have an accident and come back and sue their initial open water instructor for negligence, saying they didn't get proper training and that caused their accident?
OK off the stuffing box ...