From what I have seen and read, lasers are a benefit to people who own a firearm and are not very well versed or proficient in its use. A lot of people think that owning a firearm makes them a shooter. Owning a piano doesn't make you a pianist, ditto with firearms ownership making you a shooter. Shooters are way too fast for lasers. Shooters have gotten so far beyond a target/plate before the bullet gets there, that if they miss, they have normally taken a second shot and are moving to the 3rd target/plate at a distance of 12-15 yards before they realize the plate did not go down. That's why you see more experienced shooters make up a plate at the end, versus new shooters having the time between splits to realize it was a miss and re-engage. If the shot is off, they usually have called the shot, but due to the speed, they pick it up after continuing to clean the plate rack. Inside of 7 yards, where most gunfights occur, you had BETTER get off the X and put as many rounds on target as quickly as possible. A burst to the upper chest followed by a burst to the head. People think combat shooting and target competition shooting is the same, it is not. Shooting targets is not like defending yourself from someone who is enraged and amped up on adrenaline, alcohol, and/or narcotics. Stroll through your local gym about 5 AM and see the men and women lifting and consider what it would take to stop a threat in that physical condition. That is one of the reasons why the Israeli Police teach only headshots with a handgun.
Competition shooting prepares one in shooting a target extremely fast and is a huge part of the skills needed. Mindset to survive and prevail is also a large part. When I trained with Jim Cirillo in 1998, he said then that police officers who were hunters and competition shooters where most likely to survive a violent lethal force encounter. They knew what it took to kill an animal and they had the skills to shoot accurately under stress. I watch new shooters shaking on the line when I run them, just as I did when i started. Now, I don't mind being first, because I have the confidence to know what I am about to do.
A shot to the heart leaves a person conscious for 15-45 seconds, time enough for most shooters in Production with 10 rounds per magazine to shoot a long course of fire. We shot 3 strings of fire, 15 rounds from 3 different positions just Sunday, quickest shooters shot each 15 round string in 14-15 seconds, at 270 pounds I shot it in 18-19 seconds. And we sprinted almost 25 yards total distance.
The laser will benefit those who do not have the skillset that a true competition shooter has, but in the hands of a shooter, the laser will never be seen until after a deadly threat is neutralized.