I’m a bit confused about the standard for the fretboart curvature.
Often it is said that it should be straight and (maybe) with a relief.
To me the most perfect curvature follows the underside
of the singing string, which has the form of a cigar.
As I fret up the board, the waist of the cigar is moved
towards the bridge, but less fat.
The resulting curvature is that of a "half smooked" up to 12th fret
and then flattening out a little for the rest of the frets.
With this form you get the lowest possible action.
I always converts my guitars for this setup, with
a remarkable improvement in playability.
So why this idea of a straight neck?
A consession to the overwelming part of buyers
who peeks down the neck for this well established myth?
Is it a so much easier way to go when straight?
(as the cigar is nearly not visible for the high e, while obvious for the low)
PS
The down sloop often seen after the 12th fret, to me
only means that it was not ment to be played up there -
- which is obvious when listening to its intonation.
Relief wont tell you much about the ideal form of
the entire bridge, as it even allows a hump at the neck joint.
DS
Maybe this is nothing new to most luthiers….
or maybe am I all wrong?