I know you're really wanting to hear this, but unfortunately there's no time at all (barely time to write until the end of the year), but I just wanted to add my two cents. I have a Washburn Trevor Rabin, with an SD 59 in the neck and JB in the bridge, and recently I drilled in two two-way toggle switches to go between series / parallel for each pickup. I also copper tape shielded everything and created LP / SG wiring using two dual concentric pots with individual treble bleed on each pickup. Anyway, I just wanted to chime in that the parallel sound on each pickup is really cool. I loved both of those pickups split, but I can't stand the hum, so I opted for parallel instead. Very easily with the right settings in the AxeFX, I can totally go into the Strato-sphere with tone, by rolling back on the volume knobs and engaging the parallel on each pickup, but it's still not as stratty as the single-coil sound, maybe something more akin to P90 stuff...maybe, but I like it a lot. Wonderful blues tones. But the real difference in series / parallel, at least for these pickups on this axe, comes into view when you roll back the volume knobs. With the volumes at 10 the difference is not nearly as striking. Running the guitar full throttle at high gain you wouldn't really tell the difference. But really, with edge of breakup stuff, the series / parallel difference is awesome. Also, since I made it possible to switch the pickups between series / parallel individually, in the middle position I get really interesting combinations, like keeping the neck in parallel and the bridge in series, or vice versa. All sorts of tone soup.
Your goal here is anti-mud, I know, and honestly, I think you might more directly solve what you're after with something like the Humbucker from Hell by DiMarzio; that thing is specifically designed for that purpose. Either that or try the parallel, but maybe also add a treble bleed and roll off the volume knob a bit. I use the V-Treb by PMT, which allows you to set the amount of bleed via a tiny plastic screw; it's remarkable.
Maybe in the new year I'll have time to touch my guitar more, and then I could try to post a recording, but in the meantime, best of luck with this!
All the Best.