Never tried it as I have a spinner. That said, I'd think getting the same grit over the whole ball might be tough. You'd have to keep the pad moving, making sure you used the same pressure all over. That's the same with a spinner but you can cover more of the ball at once, I'd think, than you could with this system.
Good price, might be worth a try, for those who don't have a spinner or don't want to spend that kind of money for one.
Good Luck with ever way you go.
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