I am done with the notion of waiting around for calves to heal. I am losing to much hard earned cardio conditioning in the process. So I am going back to 1 hr of some other exercise, in my Speeds, other than running. Here is the list I got so far: Elliptical Machine, Swimming (they won't let my shoes in the pool, rowing, biking (although I am not a fan of the pain in the seat), weights and of course walking. I'll run maybe once or twice a week for two miles or until the calf pain occurs.