I'll start. I replaced the stock Sub 1 bridge pickup with the non-relic EVH pickup. So far, the pickup sounds great. It was designed to work with a 500k volume pot, so I expected it to be really dark, and not sound right. As luck would have it, it actually sounds great with the stock 250k pots. I would recommend this pickup for the Sub 1. Sometime down the road, I think I'm going to put a P-Rail in the neck.
I put a dimarzio x2n in my bridge only p/u sub 1,I may try something different down the road a bit as this p/u is kinda brutal but thats what I wanted.
I've kinda overlooked this sub-forum for a while, so a late reply from me. I have the following DiMarzio setup in my Sub: DiMarzio D Sonic DP207F DiMarzio Area '61 DP416 DiMarzio Air Norton DP193 All in a Y2D layout. Sounds good, though the D Sonic perhaps should have been flipped.
Dimarzios; Tone Zone bridge and Air Zone neck
I'll resurrect this a little.. Sub 1 #1 Neck - DiMarzio Air Norton (Chrome) Bridge - DiMarzio Evolution (Chrome) Sub1 #2 Neck - DiMarzio Liquifire Bridge - DiMarzio Evolution Tasty!