One of the problems is there is NO place in NJ where you can just go out into the woods and shoot a handgun...unless it is your own property and your town has no discharge laws. Sounds like he was just being a wahoo and blasting away out of his car while drinking too. What a dumbass.
I'm fairly sure it's spring related. I did have 1 light primer strike with my other cz at steel challenge. The guys at the steel competition are saying it's most likely a worn out hammer spring. The cz that fails more often has significantly more rounds through it.
I bought a new extending firing pin, firing pin spring and hammer spring. I'll throw those in there and report back.