Wow, bad news. I took my Glocks out to practice Friday and my G26 concealed carry gun repeatedly failed to fire and had one nose dive feed failure. I thought could have been due to the light loads I was working up. I didn't think the 3.5 connector would cause it but I replaced it with a standard connector anyway.
Saturday at the match the armorer pointed out my firing pin spring was all gunked up. I never clean those; after all I never shoot these guns, just carry them. It fired fine after cleaning but then had more nose dives. The armorer replaced the offending mag's spring and follower but it later nose dived again. The other mags ran fine, but this was the mag I kept in the gun for CCW. Yikes!
I completely fell apart in the match. I had a potential win going in Master Stock with my 17and gave up a bunch of time on the plate rack, perhaps the easiest stage. What the heck? Another USPSA GM came from out of state and cleaned up. He was particularly impressive with subcompacts.