Judging by the Results that Tim Witherspoon often got (Bruno Broad Nearly Holmes ect) it can certainly be an effective causer of discombobulation if landed on the side of the head, if not expected and landing out of the blue, like most big punches, if not braced for.. it could spell doom for the opponent, Dave 'Boy' Green had an effective 'Opponent Rattler' in his overhand right that he christened his 'Muck-Spreader' it dipped the kness of Carlos Palomino in the 10th round of their absolute thriller, but Palomino's reliable Left hook won the day for him soon after,