In his black strat DG used a DiMarzio FS-1 from Animals through the Wall. It wasn't until after the Wall was recorded that it got a custom SSL-1, which is now the SSL-5. In the late '80s and '90s he used EMGs, most famously in his red Strat.
That he extensively used any Duncan pickups besides the SSL-5 is news to me.
Still, I think an SSL-6, SSL-2RW/RP, SSL-2 make an amazing set.
My last foray into SSS was for a friend: DiMarzio Injector Neck (in the bridge) and two Lace Sensor Golds. 250k controls, one tone on the neck and one on the bridge. He is extremely happy. The Injector Neck is more Stratty than an SSL-6/STK-S6.