I couldn't believe that "winter trigger" description was correct when I heard it, but I didn't know for sure. And the idea of ejection down a chute rather than through an ejection port is just plain goofy. By this time, the basics of 9mm SMG design had pretty well been worked out, and it's amazing that those key features were not acknowledged by S&Ws design team. I'd think that any group of undergraduate mechanical engineering students could have done better.