The kid is TKD, but he is doing something that I would consider a half-decent roundhouse by TCMA standards.
http://www.youtube.com/watch?v=yIawb...eature=related
What makes it good is when the foot travels continuously from the floor to the target. He still chambers but the foot never stops making angular progress. He gets some hip in his kick too, but it doesn't spin him.
What I consider bad is when I see the discontinuous snap. It gets taught that way but a lot of people never move beyond it. Chamber...Fire... Chamber.... Down.... um... No Thanks...