because when i think about their live performances, do they only perform certain songs that are in the same tuning or do they have to learn the whole song in a different position? i don't think i've seen karyu switch guitars between certain songs either..that's why it's kind of interesting to me.
they'll usually group songs together that are in the same tunings, and when they arent, they just switch guitars. or sometimes if its a tuning thats only like a half step difference they'll just play it one note lower or higher.