I have been involved in sport TKD for 17 years...When we started it was Old Skool now it is New Skool...my son just won a Bronze Medal at the Mexico Open SR BB he has beaten fighters as high as #11 in the world...but has yet to beat anyone in the Top10 @-68kg Featherweight...the knock on him is that he likes to fight too much which leaves him open to get scored on by ticky tak points...a good example is he lost at the US Open 16-15 but beat the other fighter up so bad that he was unable to continue the Chinese Taipei fighter had to forfeit his next match...his coach is an Olympic medalist and he is training him to play the game more and fight less...an odd proposition for a combat sport