There's an easy way to tell if your Series 80 system is headed for trouble.
Remove the plunger from the slide and look closely at it. If the corner above the concave portion appears to be splined, the plunger isn't being lifted quite high enough to allow the firing pin to clear it...which means that particular gun needs a different plunger lever. Not sure if Colt will send one. They may want you to send the gun in for installation and timing check.
Or...the quick and dirty way...heat the lever arm and bend it upward for a little more lift. It rarely requires more than about .010 inch.
If your front porch collapses and kills more than three dogs...You just might be a redneck