I've done some thinking/review of recent runs. I looked at the HR data on what was supposed to be an easy run and I was 70% in HR zone 4.
I ran yesterday with the HR screen up and moderated pace just on HR and it was much better feeling, but slower than I would have run if I had just kept pace up on my watch.
I think I need to slow down some. Which is disappointing in some regards, but better to be realistic and do the training.