I must be alone in this... do the rest of you spar karate people that actually try to use rising blocks and down blocks in traditional stances? I have yet to meet one that's actually retarded enough to try that crap... all the karate i've seen or done generally treats the kata part of it as tradition and art - that there are certain things like balance and breathing that can be learned as secondary training for fighting, but nothing else.
The hard, rigid 'blocks' of Karate should not be used to intercept punches or kicks.
The blocking motions of karate, as they are practiced, are not to be used against punches. When karate do was developed, it was developed as a fighting art in a time when it was much more common for someone to grab you than to punch you. In feudal and post-feudal japan, the nobility practiced jujutsu and karate do was developed as a way to protect against trouble-causing warriors.
I'm kind of confused. You tell us that the chamber punch is retarded and shouldn't be used in forms, that you have to guard your head. Now you tell us how "it's supposed to be done" with an equally unrealistic drill where someone grabs your wrist??? And then use it to train this alternate version of the chamber punch where you're still not covering the face...
I can give a quick example of what I'm talking about here. Let's take the first kata that any karate school teaches. We all know it. We go to the yoi position, then step to the left into a horse stance with a downward block. (1) Next, we step in that same direction with the right foot and throw a punch. (2) We reach up behind the shoulder, turn around into a horse stance and execute another downward block (4) then finish with another forward step and punch(5).
Here is what should actually happen:
1) having been grabbed at the wrist, we pull the arm upward to escape the grab while establishing a base. Instead of a downward block, this should be a grab of the attacker's sleeve.
2) stepping forward, we pull the opponent's wrist "to chamber" and grab the opponent at the lapel. with the opposite hand.
3) turning around we continue the motion with the hands still at the opponents' wrist and lapel, setting up a morote seoi nage throw.
4) we execute the morote seoi nage throw.
5) The final "punch" is actually a setup for another grab, which leads into the next technique, a repetition of morote seoi nage from a quarter turn instead of a half turn.
The subsequent "punches" down the middle can easily represent an osoto gari leg sweep.