Like MANY of us here. i've spent what is probably an unhealthy amount of energy obsessing over neck profile. I am pretty much a p-bass guy, although I find the old 1-3/4" width necks to be a little unwieldy at times. Similarly, I find that the ultra-slim neck on the Geddy Jazz bass feels a little to confining in my hands. Anyway, today I played a handful of really well-set-up American Standard basses at the local GS, and while I still had a slight preference for the P-bass, I realized that once I got lost in actual playing the slight difference in neck width really didn't matter all that much - like not at all. Both P's and J's were equally manageable, and "made sense" when considered in the context of the instrument as a whole. I guess the upshot is I can see good (enough) reason for adding a J-bass or two to my P-bass collection. In fact, if could only have one bass I'd still prefer a P but would get by just fine with either. Damn, Leo was a genius.