Hey Simon, are you referring to genuine MM PUP's or the stock Chinese kit ones? I can only comment on what came with the kit and it is ready set to go as a humbucker, same as what came in the EX-5 which are also the same as in the IB5 & IB6 plus Thunderbird and maybe a couple of others.

You need to run a multi meter across all 4 wires to work out which ones relate to either front (north) coil or rear (south) coil to make any decent sounds.

Here is the link to a post I put up last October on the topic.... http://www.buildyourownguitar.com.au...ead.php?t=6476

Definitely not a pair a coils in parallel as that sound is shite. How do I know? Because I accidently wired them up that way when doing the split coil push pulls on the EX-5 and not a pleasant or useable sound at all. Might be different on the Real deal MMB PUP but on these Chinese suckers, trust me, I know what I am talking about. This unit is just a MMB look alike as far as I can figure out.

Will keep an open mind on the topic in case standard pre-amp wiring sounds dull or crap and maybe then revisit modification ideas.

Cheers, Waz