So my de-fretted Tune bass's rosewood fingerboard is getting all torn up at the heel from slapping. Has anyone figured out a good way to protect against this? I saw that F-basses have a "slap plate" available as an option. It's basically a 1/4" long brass fingerboard extension -- the strings hit it instead of the soft fingerboard. Seems like it would give me a better slap tone and keep my bass from deteriorating. Any suggestions on how to go about making this? It has to be radiused to match the fingerboard, which is a non-trivial task... at least the body is flat.