Rev. Gary Davis also uses only his thumb and index finger. I use thumb and all 3 "guitar" fingers, and need all of them! I don't know how he can make the amazing sounds he makes (well, made) using just thumb and one finger! Doc is just as amazing. Hmm. Maybe they're onto something! But I'm too set in my ways to change from a 4-finger to a 2-finger style.

Alex
O..O
=o=