Observe the speed at which the Trooper draws
his weapon and fires. Accurately. Practice makes
perfect.
What
should be learned from this incident starts at 00:31, when the suspect's gun comes out the window and the attempt to fire is made. Note the officer's classic instinctive reactions: lowered center of gravity, hands coming into the field of vision to protect the head (and, in this case, an attempt to swat the weapon away.)
By 00:32 these reactions have already taken place, and it takes a couple of seconds for the officer to cognitively process what's going on; he actually pauses before finally reaching for his gun. It's almost 5 seconds from the time the threat is recognized to the draw of the gun.
His natural grasp reflex has him clinging to his flashlight until 00:36, when his mind finally decides that it needs that hand for something more important, which is when he finally drops it and commences shooting at 00:37.
It's helpful to look at the YouTube video, as it allows scrubbing and stop motion to see what's really happening (the Gazette video doesn't):
http://www.youtube.com/watch?v=q9FtEYrnocMThe point of this? How fast you can draw the gun is really irrelevant compared to the delay in processing the appearance of the threat. Practicing more realistically - starting the intuitive reaction of drawing the gun at the point the instinctive reactions have occurred - will make the gains where they are most needed, which is in the recognition and response phase of the encounter.
This is not to denigrate the officer; he performed admirably under fire. His reactions, however, could have been made more efficient through more realistic training.