Hello Elaine,
I just bought the setup you are talking about for concealed carry. Or a similar setup really.
I bought a 342PD and put Crimson Trace Grips on it.
I wanted the lightest S&W and smallest I could find in a revolver, not an auto.
I sold my Glock 23 to help finance it.
I knew I wouldn't run .357 magnums, so I wanted it super light and the 342 is .5 oz or solighter than the 340PD. I also ain't gonna be shooting it for Fun. To me snubbies are for defense.
I bought some 38 specials to practice with and rough sight in the Laser, and then I'll final sight the 38 +Ps and that's what I will carry.
To me, the super light weight and small size means I'll be mmore likely to carry it. hat 340 series really drops into a pocket nicely and it is like a feather.
If you don't carry it because it weighs down your shorts, it doesn't do much good.
Go pick up one of the 340's, the Light weight makes the Airweights feel like they need to go on a diet.
But no bones about it, not something you would shoot for pleasure.
The Crimson Trace videos on their website do a great job of demonstrating the advantages of Lasers for self defense. You can fire from any position, on the run, etc and hit your target. You can keep the gun back and not extended where you could be disarmed, etc. The Laser was made for Combat. No brainer really.
They'll send you a free DVD to watch.
Why Laser Sights are an Effective Self-Defense Tool | Crimson Trace Lasergrips
There are lots of nice videos on their site as well.
The Industry Leader in Laser Sights for Guns | Crimson Trace Lasergrips
No affiliation, just a happy owner of their product. Happy owner of my 342PD as well. 340PD was my second choice.
p.s. You can get the trigger smoothed and a spring kit done at the same time to lighten the trigger and smooth it out.