ive seen all this confused MANY times. there was a also a story from american news. i'll see if i can find it.
basicly there was a riot during a karate tournament. 2 schools went at it, and things escalated. the silly thing was... out of about 150 exponents... there was 1 bleeding nose, and thats IT! the reason?.... it was a sports gathering... the people involved had been training so much to just score points, that they automaticly held back, just as they were trained to do.
i'll see if i cant get the original story, and some more details.
anywho... as sprout has said... you dont NEED to chamber a punch to generate power. boxing, and wing chun are very good examples. boxers wear 16oz gloves, which give quitea bit of protection, and can STILL knock out opponents without preparing a strike.
also... think of the practicalitys. to puch effectively based on that little exert you gave.. you would have to bring the hand away from your face, show someone your going to strike, then make it travel the extra 18inches to someones face. i could hapily put out 2 strikes with good power in the time it takes to do that.
i dont really care how many instructors or anything i speak too... its the wrong way to train a combat art. the hand should never be shown to be away from the jawline... protecting your face, and in a position to move to protect anywhere on the upper body.
adrenaline does strange things to people. i remember 4 fights ive seen where someone has struck a pose, or tried to hit by chambering their strikes. no power was gained because you cant really chamber a strike when you've just been put on your ass. lol
boxers, self defence classes, real combat arts, millitary exponents ALL say the same thing. the only arts where ive seen this are karate, and TQD... both are equally bad (TQD being the worse of the 2 in my opinion)
but all this isnt a karate bashing post. its still saying that there ARE wrong ways to train. and things like training your hand to retract to your hip[ is wrong. and you say that its just for beginers....
i remember seeing a kata done by some black belts... in all fairness, they were all in sync, and looked proficient at what they did... but in the 1 kata i saw, they placed their hands on their hips 5 times to strike... so i dont know about what you've said.
as i understand kata... their meant to be a set way to train set idea's. in this case, and im happy to say... many others... high ranking karate exponents are chambering strikes, when they shouldnt, or dont need too.
power is generated with the hips... so how does it help that your ARM travels more? thats a pretty steep learning curve. the floating punch can generatemassive power in a few inches. boxers can do it through pads, at their jawline, as can *I*... so what exactly is the point?
Here's some info I found rather than me rambling on.
unlucky for you mate... i love to babble on, and no such quotes to be found 8)