fnfalman
Contributor
Wow! That's a pretty declarative statement. Want to justify it?
My dive computer automatically sets the Nitrox mix level to 21%, otherwise known as "air," and if I'm diving with a different mix, I set my computer to register that percentage. I learned the recommended dive limits for the various standard mixes out of the book. Learned how to measure the mix level in the class, using an oxygen analyzer (but not the one I have encountered most frequently on trips). Learned in the class how to record the necessary info on the tank and in the log book for each dive. Then, I started diving with Nitrox. What, exactly, does the actual underwater part of the dive accomplish for the use of Nitrox that above water tutelage does not?
Yep. Once you do the theories and learn how to use the gas analyzer, it ain't no different than diving on air except that your MOD changes. Jesus H. Christ, it ain't rocket science.
It doesn't change how I handle my buoyancy. It doesn't change how I kick my fins. It doesn't change my safety stop procedures. It doesn't change anything but my bottom time and depth, which changes with air anyway depending on which dive of the day and to which depth.