Hmmm that does make sense, MK! Thanks for explaining!!
I want to be really hardcore and ambitious get as ready as possible, but not so much so that I'm actually hurting instead of strengthening myself. And I think I'm still trying to explore the line between pushing my mental limits and my physical limits. I think your advice makes a lot of sense for me to run 4 weekend days and once on the weekend and vary how long/challenging the runs are.
Now that we're getting into the "higher" miles (at least for us ) we're going to run on the street instead of the track - Anything above 12 laps seems brainkilling and counterproductive!! So I'm hoping I enjoy pavement running and that my muscles respond as well as they do to the soft track!