Wing Tsun's "Training partner" form is probably developed alongside with the Siu Nim Tau Form, in order to train the basic positions during rotation and with a proper power line via the 7 joints.

Muk Yan Chong contains of eight sections describing "triangle to square", various combinations of punching/controlling (Dar/Wu) "squared" sets of arms as and the Fook/Wu - Jam/Chaan, various kicking ideas, different "weapon ranges" etc.

The Wooden Dummy tests the primarily structure and coordination of arms and legs during limited rotation.