For me means i am here because I am asking the same questions. Mostly use Duncans and spend time on that forum. The Duncan 59/Custom Hybrid and a Sentient will get you there easily looking into Dimarzio. Bought a REALLY nice Carvin ST 300 with Crunch Lab/ Liquifier set in it a while back. HATED the Crunch lab for anything but full on heavy stuff just would not clean up and open up with touch like I wanted it it so swapped it for a Gravity Storm. Like the Gravity Storm but just can't get the Liquifire to work for me. To dark and muddy full on and is really lifeless split. So I am also looking for a neck pickup this time.
The Gravity Storm bridge would get you close have no clue on a Dimarzio neck though.
Have 2 with the 59/Custom Sentient Duncan sets and can cover anything from modern metal to really shockingly good country run togtether with a 3 way and a pair of taps.
What I need is a clear articulate big but not muddy neck pickup that splits well to go with the big open warm A5 Gravity Storm Bridge in the ST 300 to do the same.
Saw your posts in my other thread as well. I've been googling a lot these last few weeks and for my guitar that has the '59 (n) / Custom 5 (b) combo I've settled on replacing the C5 with a JB. At least it won't get lost in the mix.
In my other guitar that needs to be extremely versatile, an alder Charvel DK24 2PT that originally came with Alnico 2 Pro (n) / Full Shred, funnily enough I've decided to replace the FS with the 59/Custom Hybrid. It sounds like an awesome pickup. Can't wait to try it.