Ah I don't know about that Kev, but thanks. It is fun to watch the best do what they do though....... they're swinging, hitting, under, over, steering, snapping, still heads, dipping swaying heads, using multiple ball positions, hinges and pivots. All in one round!!! Its easy for people to pull out one swing and try to build a method around it, but that same guy makes swings that you could try to build another method around. Theres a lot going on! Can't be a robot I guess, and most of them can make all sorts of different swings to hit different shots. They are expert machinists no doubt, some are just experts.