Warpig is overkill in a les paul, unless all you wanna do is shake the floor and blow the roof off. :twisted:
Have you considered Crawlers or Holy Divers? Both have very strong midrange and are very versatile sets. If you're set on a ceramic pickup though, I'd take the Cold Sweat. It has less mids than the Painkiller, but from all the clips I've heard the CS does not sound scooped at all, just more balanced sounding and less pronounced, but still tight and aggressive. If I were you I'd get a CS bridge and AIV Mule neck, so you can still have the sweet vintageness of the Stormy Monday set but like you said, more aggresive. The Mule will do high-gain but you're probably gonna need a TS-style boost for it. It will also be a good compliment to your Nailbomb/Crawler equipped guitar.