Hi, I happen to live in the same town as this idiot. "Master" Koo is a korean who was linked up with the local TKD foolishness called Choi Kwang Do. Well, he had a falling out with them and started his own thing. What's weird is that he doesn't claim TKD. just plain Koo self defense. All they do is exercise, you know push ups, sit ups, jumping jacks, etc... Then for test they Break plastic re-breakable boards to demonstrate their awesome power. the class is filled with rejects from all the areas more traditional schools of martial arts and "master Koo" sells them black belts when they've paid enough. anyway I guess it's better than the other "karate" class we have here. Cade Lee Karate. (see my post with his link).