Well, it looks like the decision to rest for two weeks and then re-start on a walking only regimen is paying off nicely.
Not only am I a week into the re-start, but I am pain free. I'm also to the point where the 20 minutes at 3.7MPH is becoming a solid and comfortable way to start my day.
I'll be sticking with the two week walking re-start and see how things are going next Saturday.
This knee injury had me worried on several levels. Fortunately, I remembered that like is a marathon (no pun intended) and not a sprint. By regrouping and giving myself time to rest and heal, I'm now in a much better position to complete his journey.