I'm mostly immune to neck size, but my 2 NR's are more Jazz-like than Pbass like. Probably the best neck I have ever used was the Tony Franklin Pbass, and it was smack dab in the middle of a jazz and pbass.
So smack dab in the middle is my final answer.
Might be why I ike birds and Ric's
I think I'm heading toward single pickups, so they gotta be good, even considering volume only.
anytime you are in the neighborhood we got a Genz-Benz/Yorkville stack, a pot of beans on the fire, 2 NR's and a couch to sleep on.