In this video, we look at the range of jackson 5 movement that tour pros make in transition, and how it relates to what the upper body will do during the release. The difference between the center of the thorax and the center of the pelvis at it's peak is around 6-8 inches for driver but only a couple inches for wedges. Many amateurs have a difference of only a couple inches, even with their driver, which is part of the reason why it can be one of the harder clubs for higher handicap golfers to hit.