I just snagged a set of replacement Fender (Actually, I'm not sure that they are by Fender, but I hadn't heard of any low-end RB replacement pups, so I figured they'd be fine) Roscoe Beck 5 string pups, and I'm interested in how narrow a neck I can use for the bass I'll build around the pups. I now have a Mighty Mite 5-string neck that's 3" at the 20th fret- I figure that's wide enough to pretty much match the original RB spacing. Thing is, I think I'm going to end up wanting a "better" neck, like the Warmoth Deluxe Jazz 5 22-fret. I have bodies for either neck, but the Warmoth neck is not as wide at 2.9" at the 22nd fret. My question is, can I use the Warmoth neck (which will push the B and G strings in at least 4mm) and still be within the range of the polepieces? For anyone who can answer without knowing about the bass itself, the pups have six sets of polepieces rather than five, and the strings sit between them rather than directly above them.