Re: WTB Trembuckers/F-spaced pickups, pref. full shred
If you think the JB is good, but want tighter and more metal and hard rock... then what you want is a JB/Custom hybrid with a standard size ceramic magnet. Kind of makes it a Custom/Distortion hybrid with a healthy amount of JB thrown in.
That's what I've got in the bridge, and it is AWESOME. If you don't find a trade that you want, send a PM to BachToRock or one of the other guys who makes hybrids and order one up. You will be happy you did!