Rest assured, ed is straight and playing better than 2007 by a long shot (didn't catch a 2007 show but heard a couple boots).  And remarkably mobile considering all the orthopedics work.  I'm glad I went.  Probably better than my last show (right here right now w/Sammy, 1992 or so).  Dave's 80% of his old self singing and mobility wise, but by no means in robert plant (decrepit) territory.