I have a 325 Night Guard, and I just replaced the springs with a Wilson Combat kit. The trigger feels a lot better, but now I'm wondering if I should replace the firing pin with an extended one from Cylinder and Slide. I read online about how some early 325 NG's had "drop safe" pins that were too short, mine is from 2008 so it would fall into that category I think. Is an extended firing pin necessary when lightening the springs on 325/625's? What do you guys think?

Necessary? Depends how low you go. I ran my 625 down to 5.5-6lbs with a factory pin and federal primers. It lit Winchesters with a straight JM spring swap which was around 7lbs.

Now I originally had one of the evil 0.486" pins, I replaced that with a factory 0.495" pin. Take the pin out and measure, if its short order up a new factory for like $4 or $5, all mine were the long ones.

Not a big fan of aftermarket pins, C&S says no dry firing without snap caps or they may break. You can look up C&S extended pins and find stories. I dry fire with crazy and don't want to mess with having to get snap caps.

I do have an APEX in one gun, it has held up, but at my trigger weight I don't think it makes much of a difference. With federals I get 100% with both, with Winchesters its around 80% with both for a 5.5-6lb trigger. I'm sure If I went lower I'd probably notice a difference.

Thanks, that is some good info. I'll break the gun down tomorrow and see which pin I have