Agree 100% best sound would be the CVC neck pickup with the CV50's vb bridge.
Im sure the DiMarzios are an improvment.
If it wasn't for the nasty 60 cycle hum I get in my house with single coils, I would have kept the stock CVC neck pu and just changed out the bridge for something with more punch and volume (Duncan Jerry Donahue or something similar). The CVC neck pu is one of the best sounding Tele neck pu's I've ever heard....they really sing, no mud at all. The Area T's really nail the Tele sound for a stacked coil design. Far better tone than the Fender Vintage Noiseless which to my ears are very thin and ice picky (although the active mid boost on the FSR's made for GC solves that problem bigtime).