Originally posted by Hagen Seibert
There are some bassic possibilities to perform a straight punch:
b) without turning the fist, the knuckles line up vertically, like in wing tsun or JKD, hitting with the 3 lower knuckles
c) without turning the fist like b, but hitting with the 2 upper knuckles ( Connelly Jujitsu )
I like b) over c) for optimal bone alignment, which makes it safer and easier to transfer power through the wrist. Hit your buddies ten times with b), ten times with c), and see which one they dislike more
P.S. I don't trust that funky one-knuckle-out punching either, you'll break your finger on the bad guy's jaw.