Barry:

Terminology varies from coach to coach on different workload levels, which I'm sure you have experienced over the years. I know I have. Anyways, I was at a clinic listening to a coach who referenced Daniels often yet never mentioned rep training. However, he had his team do striders in small amounts very often (as a teaser like you said) during the summer on pre-determined marked courses. This caught my attention and finally I asked what is the difference between striders and reps. He said, "Not a damn thing." The interesting thing was, they always did them before their distance. Less risk of injury and it was a pre-determined time to run fast, which you might not be able to do as well after a long run. Duh, that makes sense.

Also, why not rolling courses? I grew up in Western PA where there is no flats. High school coaches in that area refer to them as hill fartleks. To sum it up, push the hills and recover on the downhills. It also gives exposure to different inclines, which could be more race specific if training for a hilly course. So if you've got'em...why not use'em?