What a Monster this ball is. The coverstock really makes this ball come to life.. it begs to be throw on Heavy oil. I did my favorite drill 45x4.5x40. Threw on THS and it started up way too early, not enough conditioner on the lanes, even with the ball doing this, the ball had 7 to 8 inch Flare. Anyone looking for a Heavy Oil ball take a look at this one. Contact you local PSO for assistance