Thanks folks, limited access to computer, mother here on Royal visit .
No unwanted fret buzz. I set mine up like Sheehan. Pluck the string, let it vibrate and after a second or so, a tiny bit of buzz comes in.
String height brought to note "choking" points, then raised a tiny bit.
Neck relief, minimal, no more than 1/64th.
I think I'm being a bit of a tart here to be honest. The best Precision I have ever had, is the one I got from you Mel. As you know the action is lower than a snake's belly.
Yet even with that one, the fretboard is slightly inclined to the sky at the dusty end.
Bugger it, when me Ma goes I'm just gonna shim it. It's not that it's bad, far from it, I just like a very low action.
Bassists eh