Hi Graham, I have done a push/pull coil split thread on those Pickups which can be found here... http://www.buildyourownguitar.com.au...ead.php?t=6476

When swapping them out for something better I accidently found out how horrid they can sound if not selecting the 'right' coil to tap. In fact, on my latest Bass build I was using a MM style pickup and ended up using a mini dpdt on-off-on switch that allows front coil-normal Humbucker mode-rear coil and it doesn't sound too bad other than weaker signal once a coil had been split. If you really want those options that is the way I would do it and you can still keep the separate vol & tone for each PUP. Plenty of room in control cavity for a couple of small switches.

Cheers, Waz