JB disagrees with JP... what are the odds? (that's meant to be funny, JB) Perhaps my analogy wasn't as clear as I intended, but the point I'm trying to make is that the more skillful a player becomes the more he or she benefits from delving into the deeper and more detailed aspects of the swing and the equipment they use. A beginning golfer has enough trouble bringing the clubhead to the ball in the first place, so what type of shaft they have in their driver is of little consequence. The more a player develops, the more they will benefit from specific types of shafts and specific types of clubs. Finally, if and when that player rises to a level at which their swing is nearly perfect (or at least extremely consistent), then optimization is the final "step" in dialing in their equipment and specifications to draw the last few decimal points of performance from that swing. -JP