An easy 5.2 miles Thursday afternoon to give the knee a rest.  The knee was fine, no discomfort, but for some reason now my left calf was extremely tight and both legs felt heavy the whole way.  Guess I just need to hope they don't feel that way come Half day.  Some days I feel like I'm flying and other days it feels like I'm plodding.  Anyway, beautiful weather, sunny with a light breeze, and a most rewarding run.  Gonna go out and change the oil in my car now.