I think anyone who lives and breathes with a gun in his or her hand as an avocation is going to be a force to be reckoned with, so long as they also have a solid background in tactics.
That's a profound point, and I consider it highly valid.
I've got to say, as a whole there aren't many of those people (despite there being a concentration on this forum).
Frankly, you can carry your whole life and never HAVE a need to draw, so many people aren't committed.
Personally, I'm never more than arm's reach from my sidearm and knife.
I've observed countless confrontations, and mindset is key. I've been involved in several, survived them all, walked away from some terrified becuase I was caught off-guard and come away from others with my feathers fluffed because I overwhelmed the other combatant.
While I've never shot anyone, I've had solo foot chases with a couple fleeing felons that ended with the Taser... the only two times I've deployed the Taser. Both times it utterly failed to make a connection (
one time I missed with a probe and the other time a probe hit a shirt-tail and didn't make contact) so I ended up drilling the suspect with the Taser in-hand. It worked then. In those cases I was mentally ready and adapted to my equipment failure without a hiccup.
I can't say for sure what I'd do in a gunfight, but one option would be to fire and move forward until I was shooting at contact range if necessary. Granted, the scenarios I face include more than self defense. For instance, an active shooter at a school, is a scenario where I'm moving forward and hosing down the suspect(s) as fast & aggressive as I can for as long as I can.
From what I've seen, few individuals are prepared to meet outright agression head on. They freeze or revert to a defensive tactic, while I'm advancing. Sometimes I'm not mentally prepared, which is when I'm walking away terrified knowing I got very lucky, and managed to "come from behind" after losing the initiative.
Exhibition shooters would have that singular advantage, assuming they're currently in the mindset.
Ironically, most people reason that special details like SWAT are the most dangerous, and granted, they are... but on SWAT you are geared up, you have a plan, and you initiate the confrontation when you and your team are physically & mentally prepared. I'll argue that a lone patrol officer has a more difficult time combating complacency, because 95% of the time he can de-escalate, which makes his function more dangerous than SWAT.