The pak sao is discribed as a slapping hand. It's one of the more widely used moves in ving tsun. This move is an excellent preparation for the...
encyclopaedie
The gaan sao is a hand move that reminds of a plough. It moves downwards following the orientation line.
What we describe as jum sao is the sinking elbow. This minimal move protects the under part of the upper body like belly and liver.
The jut sao is executed with the inner part of the wrist and serves as a preparation for further attacks like a punch or a fung hao.