The two guitarists in my band always tune to Eb, but I've never down-tuned. They also move their capos all around the first 3 frets, so I've always just transposed everything.
I always think it's amusing when the vocalist says it's easier to sing with the down-tuned guitars even when the capos are on the first fret.
I always think it's amusing when the vocalist says it's easier to sing with the down-tuned guitars even when the capos are on the first fret.