How in Hell do you get the bad guy to hold off shooting until you can assume those perfect stances the gurus teach on those nice ranges with no one shooting back? I can think of a hundred situations where you could die while getting your feet in the "proper" position. And the "time out" signal probably won't work.
Jim, you have to crawl before you can walk, and walk before you can run.
A solid shooting stance --
whichever your preferred stance, whether it has a name or not -- helps the beginning shooter learn the basic principles that absolutely must be mastered if the newcomer will ever reach his full potential as a shooter. As a beginner, you stand on the range in a static stance, and you learn to shoot quickly and accurately and reliably, gripping the gun the same way every time, presenting it smoothly and efficiently every time, pressing the trigger smoothly every time.
If your instructor is smart, that beginning stance (whatever name you choose to give it) will be one that can easily segue into more advanced techniques, including shooting while moving, shooting in low light, shooting moving targets, shooting one handed... the list goes on. All of those skills will build upon your original understanding of the fundamentals, and performing these advanced skills well really requires you to have internalized the basic principles the fundamentals are intended to teach.
What this means is that as you become more accomplished, the minor details that loomed so large in your early training become less significant -- NOT because the fundamentals are no longer important, but because by this point you will have internalized and mastered the
principles that the basic fundamentals are designed to help you master.
So we study the minutae of the static stance, especially at the beginning, but nobody really believes that the static stance is the end game.
Nobody thinks that or teaches it, not even the guys who are most insistent on mastering the basics. Rather, the end game is that you'll be able to do whatever you need to do with the gun, at whatever speed you need to do it, in any situation where you might reasonably find yourself needing a gun.
But you have to learn how to walk before you can run...
pax