[ZenoArrow]

That sounds like a cool instrument, would be interested in hearing what it sounds like, do you have any clips of you playing it?

I like the idea of a guitar that can easily reach lower registers. Whilst 7-string (and in Charlie Hunter's case, 8-string) guitars are possibly more versatile, I'm quite partial to baritone guitars. This sounds beautiful to me: https://www.youtube.com/watch?v=t_06O8XnJQo

Talking of unconventional instruments, you may be interested in hearing these microtonal guitars, I think the second one in particular sounds pretty good: https://www.youtube.com/watch?v=iRsSjh5TTqI