S&W made my Sigma perfect. I sent it back because after 425 rounds I had 7 light strikes, 2 stovepipes and the trigger sucked. Not the long, hard pull (that's a good thing, right?) but it was like "when the hell is this thing going to go bang". They said they "modified the barrel" and "adjusted the trigger. Yesterday, 273 assorted JHP and FMJ without any issues what so ever. The trigger is beyond great for a DAO pistol, still long and pretty hard but you absoulty know when it's going to break. It's still not a 3 pound pull target pistol but for daily carry I wanted DAO and I got it. I was so happy if I wore lipstick it would have been on both ears!