I just bought a copper pot, so these tips will come in handy. thanks.
MetalMaster is a very nice vendor, I trust him a lot.
A light touch with a belt sander then I polish the scratches out with sandpaper
At work did not use them, at home I'm with you Mucho like copper bottoms
Since I had file marks started with 100, 120, 150, 220, 320. It worked for me have no idea what the pro's here use.