I keep hearing good things about Cold Sweats in LPs, they might be a bit tighter for lower tunings (as the CS bridge is ceramic) than the Nailbomb. I would say Holy Diver, but you say you don't want too much when it comes to mids, but they are thick, warm, and clean up quite beautifully. I've heard the Nailbomb is similar, except a bit brighter and sweeter (nothing near shrill though). I have pretty much no experience with neck pickups though, I'm all bridge for now 8)
...And then I listened to your clips (they're great). If tightness is an absolute must, CS. Otherwise, consider the Nailbomb.