Had  a ball plugged yesterday at my pro shop. After using the router and, scraper to cut the plugged holes down it was put into the HAUS machine. I was watching the ball move around and, noticed a definite repeating pattern. The pin tended to stay between 2 of the sanding disks.... Anyone have any experience with what may cause this? Shouldnt the ball have a VERY random pattern in order to hit all areas of the ball sufficiently?

BT