Throwing Jab with Vertical Fist???

Does anyone know of any professional boxers that throw jabs with a vertical fist? Throwing a jab this way does seem to be faster and could make a good set up for the right cross.

chris byrd, eric harding ,larry holmes, ,the last two they trow it from the hip likre a back hand

I've actually seen Prince Naseem Hamed throw jabs/crosses with an almost upside down (palm upwards) fist.

I posted some info on the "Wing Chun Sun Punch" thread that may be of interest.