Crimson Trace????????????

[FireMoth]

Yes, used INCORRECTLY, a laser is about the most efficient way to create really crippling training scars.
It can be very helpful with refining technique, but as some one else mentioned, that almost always requires instruction on how.

And, money being the perishable commodity its become, since it necessitates training, classes and ammo will likely go farther than a laser.

Again, not to say that lasers are not very useful. but like anything, they need to be used correctly

[LariatBob]

I have a little different take on your basic question. They CAN help you shoot better if you use them a certain way. They are great at revealing trigger control and anticipation issues. Seeing that laser move right when the gun fires says a lot. That only works if you have someone with you to watch what you're doing, though. Of course, this doesn't require an expensive laser and, frankly, doesn't even need to be dialed in for this kind of training. And to sweeten the deal, it can be done dry-firing!

They are a great training aid and will help your trigger discipline on every handgun you pick up.
They will advance your j-frame from " I can hit him or shoot a fair pattern if I'm close enough" to "I can be sure to hit where I want from across a large room, consistantly".
That said, be sure to practice with the laser off from time to time just to be prepared......