Have dealt with a Chrome shop for years. Had them rechromed my bumpers. Installed them but just couldn't live with the waves. Talked with the shop and decided a course of action. I took back and while I waited they removed the chrome. I then took them home and spent a week blocking the nickel and copper. 80 grit up to 400. Much straighter. Their now back with the shop to get copper, nickel and then chromed