Temp 52, DP 44, and a bit of a breeze. Breathing was easy, and tempo went very well - 32:37 split as 6:38/6:31/6:29/6:32/6:27. Ran easy for the first lap or so, and then hit a groove and held it; Shannon kept me company through 4 miles. Really happy about this one - effort felt right where it should be, and I could have kept going. Not sure what was going on with the heart rate monitor.
One puff foradil in the morning; no need for emergency inhaler