Well, I've got my Les Paul back now (picture to follow) and I've got one comment.
Bare Knuckle Pickups are like Ronseal. They do exactly what they say on the tin. (well, box...)
If the Painkiller is a Ferrari, then the Burstbucker Pro is a Renault Clio 186. With a broken exhaust. Being thrashed horribly.
The clean tone has just the right amount of growlyness - not overwhelming, not harsh, not rough. As for the overdrive tone... Oh yes. I hit the intro chords from 'Run to the Hills' and was blown away...
There's only one downside. I have a feeling that they're going to make the Dirty Fingers in my new SG (The one I haven't got yet) sound really bad...