14-flat, your last post is reasonable. But I think that you'll find a lot of top milers running repeats longer than 800m and you find some coaches, as on this thread, recommending the time trial or limited, full rest repeat of 1k or 1200 at mile race pace. Webb obviously did the 1k time trial last year. Scott didn't adhere to the easy run idea often and he often describes his longer runs as "hard." Webb's last reported workout was the following: 4*mile, 4:32 average. This was a 5K target pace workout.