Leo and Justin are using Chi-Sao Free fighting and Chin-Na(which are all part of wing chun) to enhance their skill in Wing Chun Gung-fu fighting. This is not strictly traditional chi sao. This does not mean that we don't use traditional chi sao, we just aren't using it in this video. True chi sao will always be the most valuable training tool in Wing Chun. This video is freestyle application practice, which is also necessary. Listening to Mr. Criminal...