Someone suggested that LEO's typically fail to keep their finger off the trigger in stressful situations, and while I have no way of knowing if this is correct, I think it is not really relevant to me, because of the differences in the circumstances that LEO's face, compared to what I am likely to face, as an armed civilian.
When a policeman draws his weapon, more often than not, he is in an offensive posture, has probably identified himself, and is going to attempt to talk the bad guy into surrender. So, he is brandishing his weapon and using it as a threat to make the 'suspect' submit to the authority of the law. The suspect is likely to be in a defensive posture, preferring escape, over violence. The typical LEO will probably draw his weapon many times, over the course of his career, but will rarely fire it.
An armed citizen, on the other hand, is the prey. He will not draw a gun unless a predator has chosen him for his victim, so the likelihood is that he will just be lucky if he even has time to draw, much less make a speech. If he draws his gun, he is going to fire it at the perpetrator, unless the perpetrator submits or retreats very quickly. Brandishing the weapon is not smart in such a situation, even if there is time for that, and in fact, is probably even illegal.
For this reason, I prefer a gun for carry that does not have a 'flip' safety. Under controlled conditions, I will never point a gun at anyone, nor will my finger be inside the trigger guard, until my sights are in the vicinity of the target. This is the way I train, and the way I intend to execute, in any situation.
Whether or not I can perform as planned is, of course, not known, but my belief is that if ever attacked and forced to defend myself, I will probably have to fire my weapon, so I will be better served by something very simple and fast.