I don't take a sheet with me. If I don't know it well enough by memory, I skip until I memorize it in practice. This simplifies my load, big time. My biggest compliment is how I remember 'all that'.

I have the Android and all that, but keep it for practice. I can usually figure stuff out and read fairly well to speed up the process. LOVE jazz fake books and learned chords as an organist (as was my Dad) a long time ago. Never knew how valuable it would be as an arranger player.

Life is good.....