I wonder if FL low axis rotation and low axis tilt has to do with revrate??? I don't know, but some1 told me I have more revs than another bowler. who's like a real tweener, power stroker than I am. The "coach", not mine, said I have more rev rate due to my roll?? At the time I had 7* tilt and 40-45* rotation - hated it. But, wouldn't someone in the opposite spectrum look to have more revrate??? I don't understand.... anyway, Revs or no revs, the guy won a green jacket.