In my experience with a shot timer, I'm equally as fast drawing and shooting from a stationary platform as I am from moving and shooting, at least within 5 yards or so.
Good job evan. Outstanding demonstration!
Since there is no legitimate data that supports 'not' moving....I say use your common sense and your inborn reactions to an attack – move. The average attacker is untrained and will find a moving, shooting target much harder to hit.
Your video at http://www.youtube.com/watch?v=ST6Yb8NehQc clearly shows the advantages of moving off the X.
(a picture is worth a thousand words)
You move off the X and shoot the 'stand and deliver', stationary target in two seconds or less. (2 shots to the body, 2 shots to the head)
I wouldn't want to be that stationary target.
Even if you were shot through the heart you would still be very able to kill the 'stand and deliver', stationary target.