Here is a clip of Mark Johnson on the tonight show.
http://www.youtube.com/watch?v=kCS5uIaTFDg
I am trying to figure out when he is using his index finger( next to thumb) ....
are most of his melody notes hit with his thumb and index??? and the strum with his middle finger nail..???
what do you think??? and what model Deering is that he has??? (not Steve Martins)