So went out shooting this afternoon with a buddy and put about 50 rounds through my new 30SF. This is a new 30SF with a test fire date of February of this year. It does have the old -1 trigger bar. My buddy that I was shooting with had a new 30SF with the -1- trigger bar with a test fire date of March of this year. I have already emailed Glock and they assure me that I have the newest trigger bar with the -1. Here is my problem I had it happen 4 times on the last round where the gun just wouldn't go off. I would work the slide eject the last round put it back into the magazine work the slide and the gun would fire. Is this the return to battery issue that I have read about or is it something that I and doing wrong? I sent an email off to Glock prior to posting this. I bought this gun to be a concealed carry weapon as well as basic home protection so I really can't have issues should the need ever arise. I am seriously considering going to the local gun shop in the morning and trading it on a regular Glock 30 depending on what Glock writes back. I really don't want to deal with shipping the gun off to Glock and waiting around just to have them say there is nothing wrong with it or try some sort of fix. What is your advice??