From the Dead Gear book:
"Jerry was always into experimenting with his guitars,particularly trying out different pickups," says Gary Brawer. "He was always changing his pickups because he felt their magnetic field didn't last long at all and that the high end would go quickly. We went through a phase where he wanted to try a lot of different pickups- he played Lindys [Lindy Fralin pickups] at a coupe of shows; in fact I still have Jerry's Lindys at my shop. He also tried some [Seymour] Duncans and a different model of DiMarzio, but he always seemed to go back to the DiMarzio Super IIs."
"Do not write so that you can be understood, write so that you cannot be misunderstood." -Epictetus