I'm the guy who was having the problem with the XCR that would get a stovepipe every 20 or so rounds. I got it back from the factory today. They replaced the gas block and the difference is amazing. I thought it was working normally on the rounds that cycled before, but the ejection on every round is much stronger than it was before and it worked perfectly for 80 rounds I fired today. After the first 10 I changed the gas setting to 3 and it still threw the brass further than it was before on 4. Since I posted the problem here a few weeks ago I wanted to publicly thank Terra and anyone else who was involved in the repair for the great job. I've sent a few things back for repair over the years, but I have never had such excellent service and communication from a manufacturer before. Terra called me when she figured out what was wrong with it and called me again when it was fixed and tested. I really appreciate that. Thanks again for the help!