I've owned a couple of PRS guitars with the stoptail in the past, and they always seem to pick up corrosion from my hand resting on them. I just picked up new Paul's Guitar a couple of weeks ago. It seems like no matter how good I wipe it off after playing the tailpiece is already starting to corrode on me. This Paul's is so beautiful and I want to keep it looking as good as I can, but I bought it to play too! What can I use to clean it and keep it clean?