It has come to my attention that there is an error on this plan.
The chart giving positions of frets give incorrect information for frets 13 to 20.
The correct measurements are:
13th fret 456.2
14th fret 479.1
15th fret 500.7
16th fret 521.1
17th fret 540.4
18th fret 558.5
19th fret 575.7
20th fret 591.9