Hi all, I've had an SD P-Rails pickup with the Triple Shot switching system in the bridge position of my Blacktop JM for a couple years now. It sounds solid enough, I guess, but I never use it with the stock neck pickup (it sounds too muddy).

I'd like to upgrade and need some input. My main guitar influences are The Chameleons, (Siamese Dream-era) Smashing Pumpkins, Hum and Slowdive. You can hear my EQD Hoof fuzz rhythm tones here:
http://www.nostalgist.bandcamp.com .
I was considering getting Lollars -- a P90 Jazzmaster pickup for the neck, and the P90 Humbucker for the bridge-- but I would like some opinions.
Are Ken Armstrong pickups good for the sounds I'm trying to get? Any and all advice is thoroughly appreciated, thanks in advance!