You'd be surprised how little actually comes off. I wonder just how long it would take to get below the engraving. I love my spinner. My biggest problem has been inconsistent polishing. Sometimes my Slingshot comes out fine, other times I make it a spare ball and I have to redo it. It's great for keeping a consistent surface on a ball, too. I use 4000 abralon for my Lanebreaker and it comes out right every time.
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