[LaserSpot]

also will pick up the action dummies (pretty cool tool).

Dummies are also useful for detecting a trigger flinch. Drop a few in your pocket along with some live ammo. Load the magazine while you look at the sky. When it goes click instead of bang, do the sights stay on target? If not, it's something you need to work on.

I've never heard of a limp-wrist malfunction, and don't know how that's supposed to contribute to jamming - please explain.

Limp-wristing is a problem that some polymer-frame pistols have. This is because the frame isn't heavy enough to stay put while the heavier slide reciprocates. This results in the slide not going all the way back, so the cartridge doesn't have time time to rise completely, and the slide isn't returning as fast.

Limp wristing is a term used to describe a phenomenon commonly encountered by semiautomatic pistol shooters, where the shooter's grip is not firm enough to hold the frame of the pistol steady while the bolt or slide of the pistol cycles. This condition often results in a failure to complete the operating cycle, properly termed a malfunction, but commonly (and incorrectly) termed a jam.

http://en.wikipedia.org/wiki/Limp_wristing

Try pushing with one hand while you pull the pistol toward you with the other hand. If the problem is limp-wristing, you may need a weaker recoil spring or stronger ammo.

I thought it should be something I could fix myself and save the aggravation of sending them out and back

I'm in favor of trying to fix it yourself if you can do so safely. The worst that will happen is you learn something, but still have to send the gun in.