when issueing power for this strike, the body uses a series of coiling movements, which can be seen as winding. From the pivoting of the stance, through the hips, waist, rotation of the scapula, and rotation of the forearm/wrist, combined with foa chum tun to, as well as the snap back, the entire body ripples to create the short power.
Winding is a good description-thanx, Brother RC
"My Gung-Fu may not be Your Gung-Fu.
Gwok-Si, Gwok-Faht"
"I will not be part of the generation
that killed Kung-Fu."
....step.