• The Bowler's Ball Speed
• The Bowler's Axis Rotation
• The Bowler's Axis Tilt
• Lane Conditions and Surface the Bowler Competes On.

Balance Holes: Balance holes place on the the bowler's PAP will cause earlier and smoother motion. Balance holes placed past the PAP increase flare, hook and flip. Balance holes place in the REV-LEVERAGE area caused increased flare, earlier hook and a smooth controlled backend reaction.

Surface Preparation: Matching the surface texture of the ball to the lane condition for each individual's style is of paramount importance in achieving the desired ball reaction. To obtain more hook on oily lanes, sand the ball with 220, 320, or 400 grit wet/dry sandpaper. As more length is needed, smooth the ball's surface by sanding with 600, 1000, or 1200 grit wet/dry sandpaper. When even more length is required polish the ball with any High quality bowling ball polish. After polishing, if slight alterations in the breakpoint length are required these can easily be achieved by lightly breaking the surface shine with various grades of scuff pads.

CG Placement: Tests have shown that with symmetric and low mass bias asymmetric cores, if you have two balls laid out identical but put the CG in two different locations, you do not see a difference in ball motion. If you have a balance hole in a ball with the CG in a different location, the reason you will have different ball motion is because you have drilled into the core and altered the shape of the core.

In balls with Medium Mass Bias, ball motion will begin to change if you put the Mass Bias in different locations. In High Mass Bias balls there is a distinct change in ball motion if you have identical balls laid out with the Mass Bias in different locations.