Quote:
Originally Posted by ganzua
... but I'm not sure about how the measure is taken; more radius means less curvature?
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Yes. A radius is halfway across a circle...from the center to the edge. A bigger radius means a bigger circle, and if you look at about 2 inches of a big circle it will be 'flatter' than a 2 inch piece of a smaller circle.
So a 12" radius fretboard is like a 2 1/4 inch piece of a circle 24 inches across. A 7.25" radius is like a 2 1/4 inch bit of a circle 15 inches across.