OK, things are really starting to more forward.
After the shoe fiasco that set me back some weeks, I'm getting the very strong feeling I'm making real progress.
Yesterday (3/26/011), I completed my latest two week segment.
I walked 15 minutes at 3.7/MPH and shifted to running 5 mins at 5/MPH. With 14 sessions behind me, I can honestly say it is tough, but doable.
This morning, I started the next segment. 12 minutes at 3.9/MPH and 8 minutes at 5/MPH. Still just 20 minutes, but a fair amount tougher than yesterday. Good workout that feels good.