This is a great thread. I just wish I had read it before my old Slingerlands started to lose their wrap. Oh well, I took it all off, put a finish in the wood drum, and have never looked back.
Now I have a question/comment. It's about leaving cymbals out in the cold. A friend of mine who races cars said they would always leave the engine blocks out in an unheated shed all winter before they used them to build a new engines. They felt it made the engines stronger. That said, I'm wondering if leaving cymbals out in the cold might have some beneficial effect on them similar to cryogenic tempering. I know mine have spent many a cold night in the van and after thirty years I think they sound pretty sweet.