So, I have a memory from long, long ago that I was in a music store in my early days and saw a Fender jazz..took a look because I was curious and saw that the neck at the nut was extremely narrow- like 1.25" or less- and the string spacing spread to normal at the bridge. I thought just by lookng at it that a Jazz would never be for me. This would've been in the late 80's. Was there actually a jazz model like that or have I just been tripping on a persistent dream memory since then? I'm under the impression that jazz and P necks aren't that drastically different now.
I remember the first jazz I played felt narrow near the nut, but that was compared to the '54 Precision I was used to, which had rather a larger piece of lumber for a neck. I think the profile has changed over the years several times, with multiple options available. My next memory of a jazz neck was that the spacing near the nut was too wide for my tastes, and the thickness front to back was very (too) thin. Could just be me, though.
According to the thread that has not all, but a lot of nut width info, the thinnest is Gretsch White Falcon - 1.28" (32.5mm) There are a few fenders around the 1.43" mark, but nothing under that, at least in the info submitted so far. You can check out the thread here: http://www.talkbass.com/threads/list-of-widths-at-nut.919079/
I don't think the nut width has changed that much on Jazzes over the years, I have an early 65 L series, but the neck depth, front to back sure has. I have played very few that are as thick as mine, so that may give the impression that some are also wider at the nut? Jim
I see one Jazz on that list that's 36.5 mm; the rest are 38 mm which is what I play now. Up until 2009 I played a 43mm Yamaha. A 5 mm difference is not as drastic as I'm thinking, which leads me to believe that I may indeed be trippin.
I too thought I prefered jazzes coz of the narrower necks,then I got a P and there isn't that much difference in playability or comfort.
Are you sure it was a Fender? Not that there were that many copies floating around back then, but it's a possibility. Also, was it new or used? Someone could have re-profiled the neck.
I recall the first time that I tried a Jazz after playing mostly upright and P bass profiles that it did feel like a toothpick. Now that I've been playing them a while they just feel normal.
I've played mostly a Jazz bass and recently picked up a P-Bass and have been playing a lot of Motown / Soul / R&B tunes that are in F. My left hand gets noticeably more tired on the P Bass neck. So much so, that I swapped necks and have my J neck on the P body. Anything above the 2nd or 3rd fret feels about the the same on the J or P neck. A few millimeters can make a noticeable difference (to some of us at least).