I did the Glock .25 cent trigger/polish job on the LCP and it made a noticeable difference in slide smoothness and trigger contact.
I don't have pics as I was just testing to see what I could actually do without completely disassembling the LCP. Basically just field stripped it and got the dremel polishing wheels out and did everything I could that has resistance.
Polished the feed ramp, the slides on the lower frame and upper slide of the pistol. I just dremel wheeled with some light metal polish and reassembled when I thought I did enough. I polished the top of the trigger pin that sits atop the trigger inside the lower frame.
It is noticeably smoother/easier slide pull and the trigger is also smoother when compared to the original pull. I can now pull the slide and shoot a heck of a lot smoother and it shoots every time no ftf's, so it did not hurt the pistol in any way.
I had to share this because one of the problems I had when I let others (women) shoot it, it's usually a pain to pull/engage the slide rearward as you may notice. It made a difference, no kidding. The part of the trigger assembly hats inside the lower frame is all metal so polishing the slide channels and metal guide does help it become smoother.
Thanks for the report. I've just been shooting it into submission to get some wear in smoothness. I'll have to give you meathod a try.
Best Regards. TDK