Actually Sixcrank- if you put the track "up" on the spinner, and spin the ball where the track is stationary, this is your Negative Axis Point. Measure 13 1/2 inches in any direction, this will be your Positive Axis Point.
I like the tape on a plastic ball. You can throw multiple shots to get it right. Try not to use a flare ball, it will only stay on your PAP for about 1-2 revs, through the arrows..... Ya probably need to get a second person to watch when using a flare ball. I do it for customers all the time.
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Mike Austin's Precision Pro Shop
Houston, TX
Drilling and Tech Advice BirdDogbowling.com
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