I feel like "half-hearted" isn't really the best term here...

I'm listening to the Tube from Nashville2 and, although it's "only" 6 minutes, it's also more than the typical 4 minutes they have been. They tend to pack a LOT more into the jams these days. 3.0 jams, while shorter on average, are more "efficient." It doesn't always work, but when it does... whew, baby. Look out.

(And yet, we do still get amazing, out-of-nowhere flashes of long-form brilliance, like the Seven Below -> Ghost from 11/28/2009); pretty much anything from any Dick's run; and, of course, the almighty Tahoe Tweezer).

Above all, they're just thoroughly enjoying every minute with each other, on-stage and off, which only bodes well for the rest of us here in the Big ol' Boat.