I'm interested in the types of malfunctions anyone has experienced on a "consistent" basis when shooting their Combat Master. I've had only one glitch in the last ~500 rounds, and it was a failure to eject the last round - the slide was locked back, and the spent case was rattling around in the port. Prior to that, I had maybe ten malfunctions, all before I changed the recoil and mag springs, where the spent case would be driven straight forward into the front of the ejection port. Other than that, the gun has fed everything, and been a ball to shoot. Are there any "classic" malfunctions associated with Combat Master, and are there specific causes and cures?