I barely got around to cleaning my new 2nd SD9VE prior to taking it to the range this afternoon. The trigger pin was backing out with manual racking to the slide. I tried pushing it back in and tried using a punch for a slave pin and it fell out. the punch was smaller in diameter. I spent about an hour getting the pin thru all the parts. Well, the pin is undersize and apparently the trigger return spring and the magazine release spring were not in the grooves as they should be. Put the trigger group back in and function tests are perfect. Don't know if anyone else has had this problem. Just a heads up if your pin is walking out, the springs are not in their notches.