That's a great performance of that tune. TONS of energy on the stage.
Mark O'Conner is one of my favorite multi-instrumentalists. Seems like he was everywhere playing with everyone back in the 80's and 90's. I think he's still very active, just not so much in the bluegrass circle. You're right on J.W., he's a huge talent in bluegrass, jazz, classical or any other style out there.