dennis wolf do half reps from chin to above his hair smith machine
frank mcgrath do them from mouth up to full straighten arms smith machine
branch warren do them free bb very fast from bouncing at his chest to almost straighten arms
charles glass got his clients do them from nose to fully straighten arms in the smith, but with elbows to the front
dorian yates do them from chin to fully straighten arms in the smith
lee haney did front bb presses from under the chin to fully straighten arms
i hope us getbiggers can agree on how to do them so we can teach the pros the right way