To calculate your breakpoint on the Sphinx oil pattern, you need to factor in the texture of the lane surface, along with the weight and type of bowling ball that you are using. For example, lighter balls such as plastic or polyester balls will have a shorter breakpoint than heavier balls like urethane and reactive resin balls. You can also adjust your speed and angle of attack to better hit your desired breakpoint on this pattern. Additionally, it is important to monitor how much oil is left in certain areas of the lane as this can drastically change where your desired breakpoint should be. Finally, taking practice shots with different equipment may be necessary to determine which type of shot works best for you on any given lane condition.