So I have a PRS P22 (Piezo22) and I am one of those guys that likes to leave his guitar plugged in on the stand next to the amp all the time. I have searched high and low but I cant find an answer to my question. My question is if I leave the guitar plugged in and have the micro-switch in the OFF position is their still a drain on the 9V battery?? TIA for any replies! BTW I absolutely love this guitar it is so versatile, beautiful and the tuning stability is amazing!