Government Mule was great but the CC in Concord isn't really a good venue for acts like theirs...there is very little acoustical treatment in that room and things get boomy real fast. Part of that might have been where I was seated, in the very front row in the center of the mezzanine. It should've been decent sound as I was on the same level as the curved array speakers but I suspect the lower frequencies get trapped up there.
They had lots of on stage monitors so there was probably a lot of stage wash. Regardless, it wasn't the worst concert I've been to sound wise. I was really amazed at how much weight Warren Haynes has lost. He looks like he's lost about 35% of his weight he was when I saw them at Meadowbrook 5-6 years ago.