Mars Volta

From the looks of those Seymour Duncan wiring diagrams he seems to have wired it correctly, although I can't be too sure. I must just not like the pickup, I was going to swap it for a Blaze neck anyway, but mine doesn't sound bassy at all, I'd say there was barely any bass.

Hi guys. Last year I bought a Dimarzio Blaze Bridge and Air Norton 7 for my RG7421XL. The Blaze sounds great but I've always hated the Air Norton 7, it sounds really thin and kind of nasal, maybe like a single coil, and so I've wondered if it was wired in single coil mode or something. My only problem is I had the work done professionally (he's usually great) and from looking at it I've no idea if it is correct as I know nothing about wiring, so I've taken some pictures of inside the control cavity and if anybody could tell me if it looks right or wrong that would be great. If it looks wrong then I'll take it somewhere else and get it re-done properly, if it looks right then it must be the pickup I don't like and I'll just swap it for a Blaze neck. I think that it could be wired wrong because the Dimarzio site describes it as warm, open sounding and smooth and mine sounds really harsh like a pick axe some times. It also has an extreme amount of buzz and noise when I use that pickup in a room with strip lights (no other pickups or positions on the guitar have this problem.) I can't find the right wiring diagram on the Dimarzio site but I want it wired just as it should come stock with the 2 pickups wired to the 5 way switch with the normal coil splitting options etc. Thanks if anyone can help