I guess maybe I should add something to this. You'll noticed I've chosen the outside coils from each humbucker in the split positions. I figured this would give you the "bridgiest" and "neckiest" combinations. You may prefer the sound of the inner coils, or you might not be able to tell much difference.
Of course, I've assumed here that like wire colors correspond to coils with like magnetic polarity, which makes the split positions hum-cancelling. If this happens not to be the case for your pickups you'll need to adjust things accordingly.
I'm ready to get started on this wiring, but I need clarification on a couple points. I'm using this switch: static.zoovy.com/img/guitarelectronics/-/swr61_500 , and I'm not sure which terminals/poles on the switch correspond to the above diagram. I'm assuming everything below the black line in the diagram corresponds to the contacts on the bottom of the switch in the URL, while everything above it corresponds to the upper layer of contacts. Correct?
Also, I have a tone and volume pot that I need to integrate into the circuit, and I'm not totally sure how to do that.
Yeah, there's two poles on the bottom and two poles on top. On the bottom layer, the two terminals toward the center of the switch will be your "P" (common) connections. On the top, I'm thinking the ones that stick out in the center are the commons.
Note that, on each of the layers, the 1,2,3... for each pole will be diametrically opposed. So if 1 is at 12:00 on one pole it will be at 6:00 on the other (on the same layer).
Of course, the easy way to find out for sure would be to use your meter. You've got one no?
When you say a volume and a tone, I assume you're cool with master volume and tone? Because this is the one I've got in my Favorites, I'll link to it. Just tack on everything after switch to what I posted.