When I use my Scales, Metropolix and Tete, I like to modulate scale-related parameters like offset, pitch-pre, scale, etc. to make my melodic phrases longer. When I use Root as-is I end up with harmony changes that are quite chromatic. This is fine for a lot of cases, but I often want to modulate to a closely related key. Ex: C to G or F instead of C to C# or B, respectively.
I imagine it would be handy to have an alternative to Root where as the CV increases it goes nonlinearly clockwise around the circle of fifths (modulo the octave, of course.) Decreasing CV would similarly go counterclockwise around the circle of fifths.
One nice thing about a mode like this is that each CV notch would only change one note of the major scale at a time. This can be a subtle but powerful way to develop a set/track over several minutes.
I am sure there is a clever name or two out there for this. Pythagorean mode? Just kidding!