Well. I recieved a custom cut pickguard and paid more than usual for it. It seems to be cut with a bevel router bit (dull bit??) and looks kinda rough. Needless to say I am not happy with it. So I am wondering if there is a method to clean it up and make it shine. I guess the answer will be to use a sand paper, but I need more detailed responses if possible (grit, material, method etc). Also there may be chemicals I don't know about.