okay we have a bit of a break in arguing.... lets go on into more technique specifics..
I WENT TO GKYS SEMINAR JUNE THIS YEAR (they invite the Korean Grandmaster Kang)
couple of things I need to take note:
1. the seminar was all-day (including sparring etc)
2. striking? not so much, I get to spar with some of the brown belt students. just ok. I almost nail the guy on the jaw, never spar with such rules before.
3. grappling? some students are struggling to apply a good armbar. I am a white belt BJJ, but my blue belt fren does a lot tighter and better armbar than their brown belts.
4. non-members werent allowed to have a roll with any of their students. So I just watched the brown belts spar. IMO it was the sloppiest grappling ever. brown belts, but they pass guard straight to mount so easily, and kept on getting swept numerous times, like they have no base or control whatsoever. I even saw the black belt in side control then for no reason let himself pinned under north-south position, instead of going for guard.the guy on top doesnt have much control either, look a little like two guys doing Yoga.
5. personally, i am not impressed. and they have this instructors program. I met one of them last yer and he had red belt, by June he's a black belt/instructor
thats just my opinion.my background (blak belt tkd, 3 years muay thai, some boxing & sanshou, white belt bjj)