I noticed that the Shuker artist bass (similar to the Turner Ren and Rob Allen approaches) can be ordered with a Schertler system instead of an under-saddle piezo. According to Schertler, this pickup is a tiny condenser mic that sits under the string saddles like a piezo. Sounds cool. The picture of the Schertler shows it to be scaled like a slim piezo element. Here's the concept: build one of these AND a piezo into bass for more tone possiblilities. I imagine I could get a saddle wide enough (or split) to contact both units. Anyone have experience using the Schertler?