Mitch Thanks for the heads up. "Slide locks back all the time" is indicative a damaged/faulty slide release spring, this one appears fine. We ran approximately 36 magazines (6 rounds per mag) through the gun. The slide locked back on four of the strings (three times in one string) an intermitent failure. Although I doubt it, I may have shot with my thumb straight along the slide, bumping the slide stop during recoil. I'm going to pay close attention to this on my next range trip.
Scamp Good luck with your CW40.
All that is neccessary for evil to triumph is for good men to do nothing