Just picked a brand new MIM Fender P. I'm really liking it so far. Will probably replace the strings soon for my usual DRs but it plays smooth. One mod I'm interested in doing soon is adding a thumb rest. Here's where it gets unusual; I want to put it between the bridge and PUP. Has anyone ever done this with their P? I like the more resistant feel and trebley sound I get playing close to the bridge but I don't think I've ever seen a P with a thumb rest there. If anyone has any experience with that, or any pics please post.