*** Maybe we should create a separate thread ***It's kind of off topic but I think that is a failure of certification agencies to present nitrox training during OW classes. You don't know what you don't know and that guy may not have understood the "why" of nitrox because he hadn't undertaken the class. Certification agencies should add a couple pages to their OW manuals and stop trying to make the buck on the extra class.
Clearly this would be good, but on the other hand the market hasn't made it happen because the majority of customers don't want it. So many people want a cheaper option, the faster option, the option with less theory to learn and absorb. This doesn't mean a cheapo or inferior option, it just means that they don't need more than a standard model. OW class already includes a lot of expense for renting or purchasing gear, so it's understandable that reasonable and safe savings are welcome. Also, IMO if an OW diver starts from zero and isn't a bookworm, there is a lot theory in an ordinary OW class, especially if you strive to have them permanently, actively remember the vast majority of what they were taught. By this I mean for example, that 3 months after certification I want to ask them to calculate gas use for their entire planned dive and have them answer w/o getting help on theory, or to set up the equations. I want them to be independent divers, to honest-to-God know, as in have ready access in their little grey cells, to what they were taught and how to apply it. For many students the current OW theory is a big enough chunk for at least the first several months.
I do think it's an excellent idea for a liveaboard to provide only nitrox, or free nitrox.
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