There is one thing that a laser can be handy for, but it's not something done with frequency. It can show someone that their wobble zone is nowhere near as large on the target, as it appears when looking through the sights. We have folks aim at a 25yd target and note how much the sights seem to move. Then, we put a laser on the gun and have them put the dot on the same target, and note how little it moves. That teaches them that in reality, they're holding the gun so that it's easily aligned with the center box of the target (about 1/4 the size of an A-zone); it just doesn't look that way when looking through the sights.
Other than that...I can't see any utility in using a laser to train for what we do. R,
The LAser is kinda handy for a instructor to show a dry fire exercise while running and gunning on the target. It helped me visualize where he was aiming and how quick he was going from target to target in relation to gun handling on and thru the stages it was helpful for this newbie to get a clear visual picture of the way he wanted it done.
Nothing beats actually shooting live fire though.
Alan