Think I've got the wiring figured out: I'm using a 5-way switch on a 2 pickup guitar

4 of the switch positions are obvious: Bridge, Bridge+Neck in parallel, Neck, and Bridge+Neck in series. What to do with that 5th position?

Decided to steal an idea from the Electra MPC series and make that Bridge+Neck out-of-phase and in series. So the five-way switch will work like this:
1.(all the way back) Bridge in series with Neck, out of phase.
2. Bridge Only
3. Bridge and Neck in parallel.
4. Neck Only
5. Bridge + Neck in series. (I'm thinking this will be the ultra-chug position)
The positions may change if @Baldman wants, but I think this is kinda nice since it puts the core selections in the middle three positions.
Also the volume and tone controls are push-pulls to allow for coil splitting.