Norman Blake, capo 3rd fret (Eb), just because he likes the sound there.

http://youtu.be/sYau7QfiiuM

Flatpicker Tony Rice playing Church Street Blues and proper use of a capo. Tony don't need no steenking crutches! He is acknowledged as one of the best living flatpickers.

http://youtu.be/gE992CZQJmM

Note capo, 3rd fret (Eb).