I have a real hard time trying to gauge just how fast Armstrong is. On that last QB draw for the TD, he looks like he is just loping along effortlessly and the other defensive guys are really moving, but they don't seem to ever catch up to him until the end zone. Maybe he just has a long, fluid stride or something, but it looks like he is never in a hurry but always gets to the corner or first down marker or end zone ahead of everybody else...easily, a lot of the time.