As someone who boxes I can attest to the disparity between peoples' ability in hitting the mitts and bag versus their ability in sparring.
There are many guys in my gym that look Tyson esque on the heavy bag, lacing powerful and fast combos together. However once they are put into the ring with someone who can hit them back, they curl up in fear and are unable to use their skills and get the **** kicked out of them.
I am not an experienced shooter, just someone who is interested in both sport and reality combat. But I can definitely see this comparison being applicable to gunfighting.
Yup...
The average individual needs technique training, and training that requires him to use his techniques under stress. The latter is usually missing, insufficient, or not done consistently enough to maintain a good training effect and proficiency.
As in boxing, fundamentals and technique must be initially learned and practiced without excess stress. When a proficiency in technique and fundamentals are displayed, than it is time to spar to induce stress, and to mentally and physically condition the fighter to apply his techniques. At first, a fighter may end up throwing technique out and succumbing to stress, but with proper training, he becomes conditioned, focused, and confident in the ring, and his technique improves. Eventually the fighter becomes conditioned and confident enough that he is capable of stepping into the ring and perform his techniques with deliberation and clarity despite stress.
This is where most agencies and programs fail to deliver imo. Blaming technique for poor performance in the ring makes NO sense when an individual has done NO sparring prior to a fight. A fighter that fails to condition himself under stress in sparring, will more than likely employ dismal technique in the fight, due to a lack of ability to manage stress.
For optimum proficiency, you must work technique, and you must do some sparring on a consistent basis to maintain proficiency and the ability to manage stress. When technique applied properly under stress proves less effective, or efficient, than it needs to be modified. However, making modifications to technique that has not been applied properly serves no purpose, and fails to "fix" the perceived issue.