I certainly hope you don't intend to stand there, in your perfect Weaver or Isosceles, and trade shots like some 18th century duelist!!! Learn to shoot from cover, while moving, kneeling, lieing down, from behind a tree, under a truck: those stances work great when the target isnt shooting back.. Get into some force-on-force simunitions training, where getting hit stings, and then see how you want to shoot. EVERY SHOOTING IS DIFFERENT.