I recently read in a Dave Tate article that said dynamic effort bench sets should be finished in less than 3.5 seconds. Yesterday I proceeded to try and do this (as opposed to waiting a second or two between reps).
When I blast up I find that I lose a lot of tightness. I think this is because when I push the bar to the top, my upper back moves up the bench a little bit.
Does anyone run into this issue? I tried changing my feet positioning, and that made it a little better but did not entirely fix the situation.