I have bowled only twice so far with it but in two different houses one synthetic med. to heavy oil on a Christmas tree with an out of bounds from 3 to the gutter with good backends. The other was a wood house with guardian on a top hat with med. to dry leaning more to dry with average backends. I am a tweener with 15 mph, with good side roll. Ball worked great on the synthetic and HOOK is an understatement. I waited to long to put it up in game 3 hitting the beak on 4 of 5 shots that I thought were good shots, just didn't expect this big a back end. On the wood, forget it. I couldn't find enough oil to keep this ball hitting. OIL is the name of the game with this ball, without it the ball goes dead in both hook and hit. Great ball but condtion specific. In comparison to the Fear Factor it is not as angular or doesn't seem to go as long but covers a few more boards.