I went to see Leo Kottke in concert recently and he has you covered, McGrath. He plays sitting down, and keeps time by tapping, stomping, thumping, just generally enthusiastically moving BOTH feet. He was wearing what looked like was retro 1960's style tennis shoes (I was a long way away, and really trying to focus on his guitar playing.) When he first walked out on stage I thought he was eccentric. After about 2 minutes I realized he had to be divinely inspired.

Oh, if I could play, just for one night, anywhere close to Kottke's level.

Freightdawg