I tried searching for this, but was unable to turn up any results for a series/parallel mod on an MM pickup. My intent (if possible) is to wire in a series/parallel switch on my Flea bass, which I've equipped with a Nordstrand MM4.2. I'm basiaclly going for a Sterling setup without the single coil option. The pickup has already been given an active/passive switch to bypass the Bartolini NTBT onboard preamp if that makes any difference. Is this a possible modification? If so, can anyone point me towards a wiring schematic for this (I've found them for J-Basses, but none for single MM basses)? Thanks in advance for any help you might be able to offer.