Wing Tsun Kung Fu Chain Punches, part I

I just checked out a post by Robert JR Graham on his site called Kung Fu Chain PunchesIt is really my article on Three WingTsun Kung Fu Punches.  The article discusses the three different WingTsun punches that are taught in three separate WingTsun forms, Siu Nim Tau, Chum Kiu and Biu Tze.  At the end, the point is made that in WingTsun, many things are done in threes.  The three chain punches at the end of the forms recognize that humans only have two hands.  If you throw three punches and your opponent tries to block each one with each hand, he does not have a hand left to defend the third punch!