Speaking as a firearms instructor of 40+ years, what I noticed most from the advent of FPS is the reduction of what we called "lag time". Before, there was a noticeable split second of hesitation between the moment the student aligned the sights with the target and moment he squeezed the trigger. The point is to generate hits. If you aim at a target and the sights are in the middle, and you fire, you will hit. The sight picture is NOT going to get better over time. So hesitation is counter-productive. You will always miss 100% of the shots you don't take. We had various training devices that assisted us in reducing various shooting problems. We had devices that we could attach to the sights so we could see what the student was seeing when he fired to look for sight alignment and sight picture problems. We had linkages that we could attach to the trigger so we could pull the trigger for them, so they could concentrate on just aligning the sights I noticed that the FPS's seemed to help reduce the hesitation to fire, to train out the "lag time". It trained the eye/mind/trigger finger connection, that when the sights land on center mass of the man-shaped silhouette, you fire. It accustomed the player to getting an immediate result from this through positive feed-back. Reducing lag time. And keep your hat on. Don't misunderstand what I'm saying. I'm **NOT** saying that, "Video games teach our children to be killers!!11!!". No video game ever made is going to change someone's morals and turn them into a murderer. But, simply from a firearms training aspect it reduced the hesitation to pull the trigger when the sights were on the target. That's all. Period.