I've had my new Sub2k in Glock19 out to the range 4 times and every single time I've had recurring FTE issues. It happens with both factory loads and store bought reloads, but it's becoming a real disappointment of a hyped up little gun. It happens mostly with high cap mags, but today it failed reliably with 10 and 15 rounders as well. KelTec sent me a replacement extractor but I'm not keen on tinkering with a part that integral to the operation of the rifle. Anybody have a gunsmith with some experience with these guns? I'm thinking it likely needs some filing and polishing in just the right places. I'm in Portland proper. Thanks.