I want to get a longer scale instrument, with guitar string spacing, to allow me to tune lower. But, ideally I'd like to get feedback. Going from 25" to 28.625" in scale, the strings behave the way I'd expect - i.e. they require a thicker gauge to tune lower, irrespective of the scale length. But when I play 30" instruments, the strings need to be SIGNIFICANTLY thicker to tune lower. In other words, the length seems to be such that the string needs a good deal of tension just to be suspected at that length. It sort of explains why basses need so much higher tension than guitar strings. Anyway, I was talking with Kurt at Rondo about the possibility of a fanned 10 string with a scale longer than 30", and he said he was definitely interested in it. So if anyone is down, and we can decide on the scales, maybe he will do it. Anyway, post up if you've ever messed around with low tuning beyond 30", where you tried to use guitar strings/tensions (as opposed to those of a bass).