I'm not sure why asking for evidence of martial efficacy of a martial art from martial artists who makes claims upsets some people so. Maybe they should not make claims?
As I said in the first post. Martial effectiveness aside, let's try to make this a discussion of internal principles and how to teach them. Not whether or not they are useful in UFC, or useful against a tank or whatever. That said however, feel free to troll away if you think it'll be helpful....