I've had the SR9C about a month now. Great little gun, shoots fantastic. I've probably put about 500 rounds through it, but the one thing I noticed is that one of my kids has at least one failure to eject on almost every magazine he shoots. Now there have been 5 different people shooting who have shot it, and it always happens to my one son and no one else. He's somewhat recoil shy and a lefty, but loves to shoot it. Could the failure to eject be caused by the way he's pulling the trigger? I'm no gunsmith, so I thought I'd ask.