I just tried the new LaBella White tapewounds on my fretless Bongo and it was no go. With the piezo p/u soloed I got an erratic signal when any came through at all. This is a light gauge set and all strings behaved this way. Batteries tested ok. No problems with the regular p/u's. What is your experience with nylon tapes of any brand on a piezo equipped EBMM?