I beleive the chambering of the punch is symbolic of a grab with one hand and a punch with the other , the chamber is the pull .
It might be a usefull tool in some ways for coordination .. perhaps , but the fact is it aids nothing to punching power , and can be a bad habit , exposing yourself and causing hesitation .
to hold and pull with one hand and hit with the other does increase power .
Spitkicker lists the traditional rteasons most often quoted
but boxers dont learn this way and they do hit hard
learning mechanics aside , it shouldnt be a habit and done in a real situation if possible .
I dont beleive chambering is wrong in kata , because your demonstrating IMHO a grabing technique , but if chambering with an opponent and not grabbing I beleive your programming bad habits .
It doesnt so much matter where the punch comes from but the fact that you can throw it from anywhere , if you have to pull it back , or allow an opening to do this then thats a negative in my book .
Interesting topic , this Native is thoroughly amused
