I removed my rubbers years ago whilst the paint was undamaged and unmarked. Any attachments like that will of course result in corrosion, just like side lights on the front wings, bonnet straps, driving lamps "nailed" on the front of the plus 4 s/s. I installed small s/s button head bolts with nylon washers each side and nyloc nuts in the holes so there's a row of polished s/s bolt heads along each wing, I'm quite happy that it looks "a la mode", and there's no damage to the wings.