Update.
I am sooo happy with this bass.
I've dropped the action VERY slightly and played with the intonation.
I also spent some time with a flexible sanding block on as I felt the fret ends were just a tad rough, certainly not as nice feeling as my Squier Jaguar, but this is partly because the Jag has rolled edges (not known back in 62).
The fingerboard has sucked up three doses of Dunlop lemon oil but seems happy now.
Mercifully I haven't needed to touch the truss rod.
The bridge pickup sounds really good and through my TE combo it's my main choice with tone right up. The neck pickup with tone rolled back is great for songs where i want a cod-upright sound. It's great being able to have tone pre-set to suit each pickup. I've started delving into mixing eth pickups now, to me it sounds best with one pickup right up and a bit of the other mixed in, rather than both on full.
I haven't yet found a 'bad' sound, and its great to plug it into the Trace and get real, rich sounds. It slaps well (as you would hope) but most of the time I'm playing it conventional fingerstyle. It deals with chords nice and clearly.
It's very slightly neck heavy, which is only an issue when playing above fret 12 and it starts to rotate slightly.
The reverse tuners are quite 'quick' but I've had no problems with accurate tuning. It holds tune in the case very well. I also like the factory fit nickel strings - normally I'm a stainless string fan.
I have attacked some of the relicing with the back of a scissors blade, there were multiple small marks that all looked very similar, they are now not much bigger but look more varied and natural. the same is true of the dents, but less obvious (and harder to do anything about).
I'm surprised how much I like the colour. Jack has a (bright new) shell pink Fender Strat with a single humbucker which makes an interesting contrast.
It already feels like an 'old friend' and certainly flatters my playing. I sometimes wander off mid-song because I'm just staring at the lovely aged finish on the back of that lovely slim neck...
I commend this bass to non-Flea fans who want a reliced jazz.
Having said that I think I'll take the performer to the next rehearsal, as now I've got a good solid mental image to compare it to.