Coil tap on each of two sides of 4 conductor humbucker. Wind 5,000 turns, tap, wire 8,000 turns, end. Wouldn't this humbucker then have 4 different output options? Tap screw side, full screw side, tap slug side and full slug side. The pickup at tap would be PAF type and and full be high output. Two voices with all the options that split coil adds.