I was at Master Yang's Test yesterday (Yang Taekwondo, New York, NY) and I believe it's best that I write a comment.
Master Yang has done an awesome job as a Master Instructor of TKD and a Dojang owner here in NYC. Students were from all different styles yet they were doing very well and having tremendous fun. I was and am truly impressed!
Master Yang, keep up your awesome job and on behalf of the Taekwon-do International, I wish you great success!