1. I've purchased a 1/4" sheet of UHMW to attach to my 80/20 fence. How often should I drill mounting holes? I have 4 nuts and probably need more (they aren't cheep).
2. The UHMW sheet has tool marks on it. I expected it to be smooth and perhaps glossy. I'm not sure this photo will matter but it's here. Any ideas on how to smooth it out? I've tried 120 grit orbital with minimal results.