If I read it correctly, the mapper will score fingering based on how many frets the hand needs to stretch:

https://github.com/scottvr/gtrsnipe/blob/4cae149e1dac766c3c3...

But this doesn't seem to account for other shape concerns. The bit I am most interested in is whether this mapper can avoid barre chords where possible.

Related, I think there should also be an option to take capo into account.