I stand when I play stringed instruments with a band, use a stool when I play guitar as a solo, and use the piano bench when I alternate guitar and keys. In a duo, I play a double neck with bass and guitar, plus pedals, sitting on a stool, adjusted to the bass pedals. I play bass until solo time. Then, I switch to pedals and play lead on the guitar neck. I use a Stienberger headless guitar sometimes, and play guitar and organ pedals on a B-3.

Works for me!

R.