A classic Grey Fox moment! Tim O'Brien joining Chris Thile on the Masters Stage was a surprise, as was Michael Daves joining Chris there too. The duet on Jerusalem Ridge was one of many highlights of the festival for me.
The Thile-Daves set on the main stage was... grasping at a description... the best set of a VERY good festival... Enough so that I immediately bought their CD. Which, if you haven't heard it... is awesome!
Rough cut, old-time bluegrass. Lots of edges. And for the main stage set, you could tell that both Thile and Daves were having a blast. I didn't try to get to the masters tent, I knew that it would be overwhelmingly crowded :-)