Replaced the three-position toggle pickup selector switch that had been installed previously with an original Alembic four-position rotary pickup selector switch. The toggle switch was wired in mono for all selections when using the five pin or 1/4", so I had it wired to its original stereo output configuration. I also had the RMC piezo-mag blend pot added, so now I can go from all magnetic Alembic pickups to a range of blend between magnetic and piezo, to all piezo. I can also mix those pickup designations with the synth, or just have synth only, or have bass pickups only. This is a very cool bass for experimenting with all kinds of sounds. Here is an updated photo...