JeffTilley Going by what I've seen in the stores through the years, the reason I've never felt the need to upgrade, is that the faces and head size are very similar in most of their fw clubs. Exception would be that 3deep, and possibly any other 'special' heads they made. I did just notice they've gone from 'Tour' to 'Pro' designations, which have been a smaller footprint head, and a bit more open faced(not too much). I'd guess the weighting is maybe different also as the trajectory is lower.(for us commoners anyway).