This video helps to explain how Wing Chun chain punching is actually done and the proper way to develop it. All to often, people try to use pure speed and muscle and just simply blitz the non-confrontational opponent. But realistically people do fight back. Attacking done right is not a numbers game where you throw 10 attacks and hope 2 to 3 will land. The right mentality for a Wing Chun fighter is not being wasteful like a solider with a gatling gun who simply has fire power but waste rounds of ammunition. Instead you are a sniper, where almost every attack is almost guaranteed to hit and where you don't fire to waste bullets.
The first drill is called freeze frame drill, in this simple concept drill, one attacks the other blocks, but only after the hit, giving the blocker the development of seeing how to regain the line, and the attacker time to also figure out where the nearest line of attack is. Once the drill can be done properly you take it to the next level, once you attack, the blocker once again tries to block, but by the time he initiates the block, you takeover his motion and throw your next attack. You then continue this process over and over again. In the end, you want to develop the skill, were you throw out an attack and can just rain it upon your opponent, who will never have the ability to block your attack, since your always one step ahead of him. In the end, this is what chain punching is really like in Wing Chun and one of the ways to develop it. And a closer glimpse as to how to apply your sticky hand skills in real fighting situations.
Credit to hgamer @ YouTube.com