On the strides, I used to run in such a fashion that I was striking my front heel about 6 inches in front of my trailing toes. Now, front heel strikes at about my toe knuckles on my trailing foot. Trying to adjust my breathing now.
The other difference is that my hammies are taking a different pounding, and complaining about it. After finishing the 5K distance, I ran the extra 1/2 mile at my more accustomed stride, and the tightness almost immediately released.


(old farts thread...)