Thanks for the advice guys. I do not have a complete gruppo, just the levers and stem. I am not quite sure what to do with them. I feel like they should be polished because of their condition but understand why maybe they shouldn't be. I have never sold one of my bikes, so the resale or value is irrelevant to me, but I do understand and consider what other collectors think. I might just do a simple polish first and see how they look. If I don't get the desired look I am wanting, I might go through the whole process of lightly sanding and polishing.