No Rules is what this ball has lol.Roto Grips new high end ball hp4 line.I really like what roto grip did with this ball the roll and shape this ball gives is amazing.ive used this ball on more sport patterns with more volume,gives me more then enough room and hook I need with still great backend and entry angle at the backend of the lane.ive left the ball box finish and added surface to it as it tends to shine up pretty quick with the amount of oil the ball picks up,i suggest to keep the 2000 abaron pad with you to clean after a lot of use just to maintain the shell and performance of this great ball.drilled mine 60x4/1/4x40. IF you looking for a ball that can have no rules on the lanes and just do what it wants pick this ball up you will be very impressed what it can do.