I'm glad this thread came up again. I bought an LCP22 some time ago, and had many of the same issues that have been posted here, specifically light strikes and extraction issues. It was bad enough that I just stopped using it. I decided to invest in the Galloway spring kit and got it installed this week. My first range session last night was a night and day difference, and I am very happy with how well the spring kit improved reliability. I tried about a dozen different types of ammo including:
Federal auto match
Blazer standard
CCI standard
Mini Mags
Velociter
Stinger
punch
remington subsonic
norma
and I believe 2-3 others that I can't remember
The gun still has issues with the lighter weight ammo like stinger and punch, and also is sluggish with the subsonic stuff (granted I had the red "suppressesd" recoil spring installed as I was shooting suppressed and unsuppressed, and forgot to take the standard spring). However, when I was using a ammo like the mini-mags, reliability was 100%, even shooting one handed which was a real issue in the past (and an absolute requirement for me to consider using it as a back-up gun). I still won't carry it until I have a few more range sessions with the ammo I decide to carry, but I am optimistic I can get comfortable with reliability, likely with mini-mags. I might even pick up another one as a practice gun and set it up with the lighter spring to shoot it with the bulk pack ammo. Also, the gun is a lot of fun to shoot suppressed!