The Soeng Gung (Double Force) originated from Yeung Tim and entered the curriculum of the Tang Family via Tang Pok.

The form combines the hand techniques with the special footwork of the Siu Lam Wing Chun and teaches structure and power transmission, speed and softness. It includes training of coordination in space in the eight directions and is an excellent instrument on the way to the successful Siu Lam Wing Chun fighter.