In fighting, there are three types of motion used to explode one’s power. First, there’s the “Body Mechanics Exploding” motion. This type of motion uses body mechanics to move and explode one’s power. These movements involve moving the body first before punching. The second type of motion is “Distance and Speed Exploding Power.” Here, speed times the distance a strike must travel equals the power generated through the strike. The third type of motion is, "Power Point Exploding.”. This involves using a technique such as the Straight Punch to hit a target. Here, the hand moves first, followed by the body.
Wing Chun favors “Power Point Exploding” techniques like the Straight Punch for three reasons. One, a straight line is the fastest way to hit a target. Two, the reaction time with this technique is very short because unlike western style punches, the Straight Punch is never chambered; i.e. the punching arm does not have to be fully bent to generate the power needed to strike effectively. Three, should the fighter miss the target, he won’t be off balance.
I like Gary, I like his stuff, but his comment on Western Boxing is just silly.
Boxing punches COME chambered because that is how they are trained, from a "guard position".
I've personally seen boxers KO guys from the following hand positions:
Relaxed at the sides
Cross armed
Pointing their finger
From holding the other guys shirt/collar
Psalms 144:1
Praise be my Lord my Rock,
He trains my hands for war, my fingers for battle !