He may be very professional, but not very competent -- not through carelessness or lack of responsibility, but through ignorance. And if you get through an IDC ignorant, whose fault is that?
Aaaahhhhhh. I know one of these. He's a CD. Useless diver (no exaggeration, I couldn't use him for surface support on a tek dive) but a *great* teacher for recreational newbies.
Yip Man.... you probably don't know him, but you know his students. In the last 10 years or so of his life he probably didn't exchange a single blow with his Kung Fu students (I know this because I'm personally acquainted with one of his students, who was my teacher).... in his younger years his "students" had to fight their way past him to get into the training hall.... but in the end.....
In the end.... he managed to set a precident that Kung Fu circles are still trying to live up to.... How? because *he* drove his flag into the ground? No. Because his students, among which were Bruce Lee (not over skilled but the best known outside Kung Fu circles) did.
He understood *everything* about his sport.... and trained without being the "super-hero".
What many divers seem to not understand is that the ability to train and the ability to dive are not the same skills. Kung Fu practitioners have understood this for 100 years, maybe more.
R..