I've got a G&L Legacy, had a local shop replace the stock bridge single coil with a Duncan Lil Screamin' Demon a few months back. I notice when in the 2nd position (bridge and middle together) that the sound is out of phase. If I wanted to have it back in phase, do I need to attach one of the other Demon's wires to somehow fix this or will a push/pull pot or mini switch be needed? The middle pup is RW/RP and hum-cancelling in position 4 is fine.