tyrone, you will have to ask someone who works at your proshop because it is a very difficult, and confuzing process to figure it out. Basically you have to calculate the speed of the ball, how long it takes to get down the lane, how many times in spins..etc. It has to be done with a stop watch and a keen eye.
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15 years and still going strong! 15 years old that is!
DA DA DAAAAAA!! UP UP AND AWAY! TO THE BAT CAVE ROBIN!The names Warrior Princess, Xena..Warrior Princess