LBSS, is it just me or is your run-up to the dunk pretty unorthodox? Don't mean to be critical, but it just looks like you don't maximize your elastic energy in those last few steps. Of course if it works for you that's another story, but the arm movement doesn't look quite in sync with your steps + your last step isn't the typical long, spring-coiling-like motion that I see in most jumpers/dunkers.