F Bb C Eb F G Bb C Eb
F Bb C Eb F F# Bb C Eb
(these are both common koto scales) (minus the F and F#)
D A C D F G A C D
(which is more costly)
I think I'm leaning towards Gaku Joshi, but I really can't decide at all. I've never had to pick fixed scale before, so I don't have a feeling for versatility. Any viewpoints or things I should consider?