I have a great set of Henckel 4 star knives that I have had over 20 years now. I keep them in a wooden block, and over time, the ends of the poly handles have developed some nicks and scratches from users being less than careful when returning a neighboring knife to the block. Has anyone ever tried to polish out these cosmetic defects? I'm wondering if some sort of polishing compound would take some of the obvious defect out, without ruining the shiny finish of the surrounding part of the handle. Does anyone have any experience to share in this area?