This thread is hilarious. I have been to over a dozen combat handgunning schools and have had the slides auto-forward on everything from Glock to Sig to S&W. It happens less on guns that sit in safes most of their lives and happens a lot on guns that actually see training on a regular basis. Has never hindered me in any way shape or form during range time, force on force training or in the field. If the slide auto shuts, I get back to shooting. If it doesn't, I shut it and get back to shooting. I don't Google what the lever is called or check the manual to see what the designer wanted it to do. I get back in the fight and let other people worry about it.