Painkiller set, hands down. I have a swamp ash bodied 7 string with a wenge neck & maple fretboard. I originally had a set of Juggernauts in it and hated them. The low end was just a bunch of flub. That wenge neck introduces sooooooo much low mid into the sound that with the Juggs, it was just super exaggerated.
So then, I would suggest a Painkiller set. Possibly a Black Hawk set w/ ceramic bridge or Nailbomb/VHII set, again with ceramic bridge.
If I'm not wrong the all wenge neck gives low mids and bass to the swamp ash (high mid and high end focused) the guitar will have equal bass, mids and highs and will be resonant and quick.
If it is correct than the Aftermath can be the most agressive pickup in it I think. AM has crunchy mids, a bit low mid oriented but not exaggerated.
Now I have a Lundgren M6 and I will try it in this guitar. The M6 was great with swamp ash body and maple neck, ebony fingerboard. It gives some warmth to the bright woods but it doesn't sound perfect with warmer woods.
I had Painkiller in koa body/koa neck/ebony board and alder/maple/ebony, Aftermath in koa body/koa neck/ebony board and swamp ash/maple/ebony, Black Hawk in swamp ash/maple/ebony and Juggernaut in swamp ash/maple/ebony.
My experiences:
- Painkiller: in alder it had too much mids. In koa it was great tight sound like The Devil Wears Prada Zombi EP's guitar sound.
-Aftermath: in koa it was the best pickup. It made fuller and more modern sound than Painkiller. In swamp ash/maple it had weak bass and low mids and too dry.
-Black Hawk (ceramic): it was better in swamp ash/maple than AM but I missed something.
-Juggernaut: in swamp ash/maple it was cool but the alnico magnet gave some flub.
-Lundgren M6: in swamp ash/maple it was the best. I tried it in a hungarian walnut (not american black walnut which is a bright wood, the hungarian walnut like a superb mahogany) with maple/wenge neck and it was too much.
