Early AM run. Not as sore as the past few days. Stretched quads and calf muscles pretty well before and after. Tried "lock lacing" to see if it keeps my heel in-place better. It does, right foot was pretty good but left heel came down with blister. I limped somewhat; this afternoon, my left hip is funky-feeling. Still very humid, breathing wasn't smooth, forgot to do nasal inhaler before running.