Since I've purchased my two Norlin Les Paul's, my SG hasn't seen much action because I always hated the fact that the thing was always too damn ice picking trebly. SO! I had a spare Seymour Duncan JB to replace the 57 classic that was giving me to shits. My God what a difference! I actually enjoy playing the poor thing now. Moral of the story guys, don't sell your SG's before you swap things around!