It's interesting how your perspectives change with time. When I first played this concert way back in 2006 my notes tell me that I wasn't overly struck with what was going on.
A couple of years on, having spent a good portion of yesterday with the ensemble percolating gently (and not so gently) in the background, the Slow magic worked its spell far more persuasively than Bill Rieflin or I gave it credit for back in 2006 (as you can read on my blog entry at the time)