i've decided not to go to Patuxent and see how the knee does on the track (no ups and downs)
run (track) 32:40  3.5 mi (9:20 / mi) (injured)shoes: Montrail Streak
a lot of tightness for first mile, but things went better after that. I was clearly listing to one side, b/c my left ankle felt tight like it was carrying more. some twinges ont he side of my knee where it hurt before, but tolerable.