I bought a used uke where intonation was not great, but with a bit of saddle work intonation is now fine. But the action is now too low for comfortable play as my strumming hand knocks against the fretboard. Also, I think the uke lost some of its volume. So low action can have some drawbacks.
Thanks Bill, and John
Yes it makes sense.
I Now have Concert from new which measures 3mm on the 12th fret.
The nut seems ok in that if I press the string close to the 3rd fret the gap on the 1st fret is fractionly more than a piece of paper. But was thinking the 3mm end is high.
Excellent point, Merlin. Those two "not-so-good" factors are why Mim, for instance, always says that her set-up preference is to get it kind of medium to medium-low, but not "crazy low". In particular, having the strumming hand knocking against the fretboard gets old real fast.
Pardon my ignorance, but who is Mim?