A follow up, finished my second day of tactical training with my Sigma, 600+ rounds, two days, single shot, double tap, triple tap, rapid fire full mags with reloading. Running to cover, draw and shoot, shooting from inside a car, climb out, find cover, shoot, night shooting, flash light techniques. Had one failure for the slide to lock back on an empty mag, that was about it. NO other prolblems. The Sigma was as accurate, (or inaccurate as was the case more than once), as everyone else attending the class, ('cept for the instructor, he's freakin' good with about anything he shot). There was a Sig Sauer that had a few issues, an FN I think was the brand, had a couple of 'hiccups', a Kel Tec PF9 with a few issues, (familiar with them, I also own one, didn't use it for the weekend). Long story short, would I trust my LIFE to my Sigma, HELL YES!