Sorry, been on vacation and not checking posts. If you’ve tried all my spring recommendations (specifically the lightened striker spring and CZ extractor spring) and are still getting light strikes. It could be your actual firing pin. On mine, after a couple thousand rounds, I realized that the firing pin is still making a little bit of contact with the striker block. And you can see the metal peening over on the firing pin. Just a couple quick swipes with a file and you’re good to go. It won’t affect safety, it’s literally just a hair that is enough to cause an out of battery regardless of spring combo. I won’t be back until next week, but I can make a quick video then or what I’m talking about.
for the guide Rod, I believe I posted it a couple posts down in this thread. Just a basic Glock 17 Rod.