I run an HS set up, which I have on my charvel. It started out as HH but it didn't stay that way for long. I love the functional diversity of HS.
I've had a few true single coils, some hum free singles, and some single coil sized humbuckers. Best of the bunch was the Dimarzio Chopper, but I currently have a Seymour Duncan STK-S1n, which is a noiseless single that comes in a lot of HSS Jackson's.
It's... ok. Underpowered and a bit vanilla.
Anyway since I keep seeing rave reviews about the Irongear stuff I grabbed one of their rail singles
IronGear Pickups - Jailhouse Rail II
Should arrive tomorrow.
Anybody used them?