For some reason low rg, low diff balls have never come into vogue, despite the great success of the Tour Power. Brunswick had one in the Battle Zone Cannon, and there have been a few others. The coverstock on the TP was supposed to be aggressive, but if you let it polish up to the lane, rather than keep it dull the shell was very tame, which was an advantage. I remember throwing mine at a Senior Masters in Tucson on a brutally tough pattern and having a great look. Even one of the Storm staffers didn't really know about the ball at the time, and was asking me about it.