[kgoerz]

Like NDD said the scanning the threat area is to break your tunnel vision you acquire in a gunfight and to remove yourself from the threats tunnel vision. Teaching a controlled scan left then right is to install the muscle memory to new shooters to perform a solid follow thru. Like stance and scanning as Shooters become more proficient they will all perform this task a little different. The stance is a guideline for a secure and balanced shooting platform. It is a natural fighting stance. I have seen instructors still correcting and nitpicking shooters stance after two weeks of shooting even though the Students are consistantly hiting the kill zone. If they are shooting accurately and have a secure and balanced stance after the first week we leave their stance as it is. It is their natural stance. I always notice that instructors who can only correct stance with students after a week of Combat Marksmanship is a sign of a instructor who has little experience in teaching combat marksmanship.