l1l, when you say resurface, do you mean completely resurface because of nicks, scratches, track worn or just make it nice & pretty again? If it needs a complete resurface, I would have it done at a pro shop with the haas machine.
I think back when they were new, they used the micron system. Because it is particle, you can use burgandy scotchbrite, then green, then grey, then use 1200 grit 3m rubbing compound if you are doing it on your own ball spinner. The only other thing I can suggest is drop that question over on the lane one site for Mr. Buzzsaw.
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Wayne
FOS HARD CORE MEMBER
Bomb Squad & Diamond Cutter

And as it is appointed unto men once to die,
but after this the judgement