Ran my 8's today except I'm beginning to think I better start calling them seven and a half's. (7 1/2)
After a good warmup I ran 8 x 600 averaging 2.48. Danny ran most of them with me and that helped big time. Anyway, much faster than two weeks ago. I didn't push the pace. I kept the effort even but I was just faster. Once again, we were off the track and using the tennis court loop instead. Much more fun that way.
I've been hesitant to use the HRM to gauge HR but the time may be coming. I am doing these by feel. I am getting faster at 600 which means it is time to go longer.