Wasn't sure whether to post here or in Gunsmithing. Picked up a Smith Model 60-7 a while back that was a little bit unloved- the top edge of the side plate has some slight evidence of someone attempting to pry it off- not totally rough / buggered but just stands proud a tiny bit when you run your finger across it. Anyone have a non-invasive method for flattening it ? Its not gross but since its a shooter I thought I might try.