I love my D1 in my 1995 CE 22. I agree they are tricky to fine tune, but once you find the sweet spot they are just amazing, and they are so great on all 5 positions.
I owned a standard 22 years ago, with zebra D2, they were really good (with a different less fat and jucy than the D1). I sold this guitar because I was founding it too dark.
This month, I just bought a singlecut trem from 2007, and there is something that disappoint me with the #6 pickups. To me they are a little dirty and harsh. I do not found for the moment the PRS touch that was present in D1 and D2. I am thinking about finding a D2 set to replace the #6...