Well, I've had it a couple of months now, playing it passive without batteries, and am wondering if it could be re-wired to work without ever needing batteries by removing the PCB, substituting a conventional tone control for the blender, and using the mini-toggle as a coil tap. Would that configuration even be possible? Also, I'm pretty handy with a soldering gun, but would it be virtual brain surgery? Other than the battery issue, I really like the guitar. It sounds absolutely great in passive mode.