Here's another wiring option to consider that was employed on the G&L L1000 series basses of the late 1990's. This setup allows two humbucking modes plus a single coil option.
The pickup on the L1000 appears to be wired the same as the GFS, (3 conductor series wired humbucker with centre tap + case braid) so theoretically this should work for you too.
The G&L had a 3 position, 2 pole toggle switch which are quite expensive (and hard to find) so during my experiments I configured a 2 pole, 3 position rotary switch to do the same job. Looks good too.
The rotary switches I've used are only 5 bucks from Jaycar, and the only customising is the reworking of the shaft to accept a fluted knob. And yes- they fit (at least in my case) in the cavity of the MMB bass with a bit of minor sanding.
Reply With Quote