Okay do you pause at the bottom ? Do you stop short of ROM (at the top?) What I mean is ending up hyper extending the elbows at the top fo the movement.
Another thing is letting the weight drop down on your chest (but in a controlled manner) but then quickly pushing the weight back up. Wouldn't that put some kind of negative pressure on your elbow joints (not sure about shoulders) ?
Shouldn't there still be a pause at the bottom of the movement ?
Also, if my upper back (and my head) is coming off the bench does that mean I'm using a too light weight ?
Same question about the dynamic squats, except differently...