OK, anyone who is on the fence about getting one of these grip extensions, I'm here to knock you onto the "OMG I need it now!" side of the fence.
Just picked up my XDm40c last week, and the dealer was out of the extensions. A quick visit the midwayusa.com took care of that problem. I went ahead and ordered 2 since I'm getting a second shorty mag to carry.
Installation is a breeze: just depress the small button in the bottom of the mag's current baseplate, slide the old baseplate off, slide the Pearce on. 60 seconds tops.
* Unload the mag. I know it shouldn't need saying, but someone will try it with a full mag if it isn't said.
* I used one of those sticks the ladies use to put their hair up in a knot to depress the baseplate release. They're roughly pencil size and have a nice rounded tip that won't scratch or mar the surfaces (or your hand if you slip!).
* As you slide the old plate off, follow along with your thumb behind it to stop the spring and locking plate from flying out. Keep the mag pointed away from your face in case you suck at this and everything flies out!
Grip was INSTANTLY better. Fitment was dead on. Reduced perceived recoil and reacquisition of target is faster. It just plain ol' rocks! Get it! Get it NOW!
Only cons: some sharp edges. These include:
* what we called "flashing" when I was a kid building plastic models. It's the spot where the piece was attached to the group of pieces when it was being molded. Mine had two small, sharp pokies on the rear corners.
* where the textured pinkie's textured grip area meets the smoother areas, all the way around. This is due to the textured area being ever so slightly higher than the other surfaces.
To fix these, I took one of my wife's finest disposable nail files (emory boards, she says) and smoothed the pokies and sharp edges right down. The file I was using was very, very fine, which allowed me to work down the ridges slowly without overdoing it. Also, this file had foam in the center rather than cardboard. This allows it to conform to the curves of the extension and allow the sanding to blend in nicely. Pretty much it's a miniature version of those foam sanding blocks you use for woodworking and drywall patching.
It's all feel, just rub your fingertip all around and knock down anything you don't like.
So, in conclusion: yes, I performed my first XDm mods with two things from my wife's makeup drawer. Hey, if it works, it works.