Sorry to resurrect an old thread but am am also looking for the same type of pup as Dan - LP neck Sykes tone, got a Lil 59 at the moment, but it's not cutting it, was considering the Dimarzio Pro Track
The Hot Rail in the neck is my favorite neck pickup and can definitely nail the Sykes tone. I have 3 JB Jr's in my Carvin Bolt, the bridge pickup I like better than the full size JB, it's just a thrashy pickup. The neck version is cool, it's toned down, more clear version of a Hot Rail.
I have a lil JB and like it. I also had a lil screamin demon that was pretty cool. I also love cool rails (different than hot rails) in mid and necks positions as well as DiMarzio YJM's in mid and neck. I think my fav sc sized pickup is one SD came first came out with, can't recall the name of it but its really just a stacked hum but single coil tone minus the hum