Went to the gym tonight and did 3 walk/run miles. Walk/jog, to be exact. Half a mile at 3.4 mph, and then half a mile at 4.3 mph. My average was 15:04 per mile, but that's not the point. I just wanted to see how I would tolerate it.
It wasn't a completely comfortable workout, but it wasn't bad. I'll see how I feel in the morning. == Rob