Was thinking about giving these a try. I have done them before, although kind of sporadically. My intent is to do them for tri's primarily, although I have seen some do them on bench day. I remember that powerlifter Anthony Clark used to use a reverse grip when setting records, unbelievable.
For those that do them how wide is your grip? I'm guessing I shouldn't go too wide if focusing on tri's. Then lower to sternum and just press straight up. I never take a liftoff on bench, but I guess you would need one for these, at least until you get used to them.