i have a TOM (LP style) Fishman Powerbridge ( their model appears to be Pro TOM 101). The low E saddle is not working. Does anyone how to troubleshoot these things? I'm not sure if it is the saddle or another problem. I see they sell replacement saddles for the Strat type bridges but don't see anything for the TOM type. The guitar was bumped on that side of the bridge. How delicate are the piezo elements in these? Would that have caused it?