Quote Originally Posted by Sharla
I'm suprised you jab with a vertical fist - if we both have the same idea of vertical. It's not really that obvious since a fist isn't exactly a long object - i would have thought the fist is horizontal when the palm faces down.

So my jab would turn at the end of the punch and connect when it's horizontal. I always hook with palm down when aiming for the head. That's just the way I was taught.
I read Ned Beaumont's book, (Boxing as a martial art-great read about the techniques of power punching) he suggested it based on the "power line" that ends with the knuckle of the ring finger (my mistake its actually the little finger), the part I aim with when landing punches (Dempseys book states this also) It feels kind of weird at first but it does carry more power/snap when combined of course with the last fraction of a second grabbing motion of the fist.