You've got good and bad days, for sure, but a player of Mark's caliber should be able to pull out something else than run-of-the-mill pentatonic licks (sorry for the jargon there). Especially now when he's on much better form than in a long time. The solos during his own set are so much better this time. So, Dylan's song being pretty straight forward (doesn't require hours of rehearsal), I definitely think Mark could have made more of it.
Having said that - it's still fantastic that he got to play with Dylan again. If he gets asked again, I hope it will be for a song where Mark gets to play more lyrically, preferably with a clean Strat sound. That's where he really shines, in my opinion. With the distorted Les Paul sound he gets a bit heavy handed.
