Another design option is to reduce the string length by one fret. This lowers the tension of the strings which is good
for a guitar or fiddle player who doesn't want to adapt ot high
tension mandolin strings.
An .011 gauge E string on a normal
mandolin is tighter than the same gauge on a guitar, and is then
Full scale = 341 mm (13.5")
Short scale = 322 mm (12.7")