Dingle D**n.........thanks vegasgunhand, good writeup. It also explains a problem I had when I carried my CS-1 on duty. As noted above I carried mine for a period before my department specified semi-autos. On one occassion of a night qualification my CS-1 started to get very difficult in DA. I had to finish the course by cocking for SA for every shot and I came close to not qualifying. When I got it home and checked it out there was unburned powder under the ejector star. After that, I kept it scrupulesly clean and never had the problem again but I would wipe under that star every chance I got. Still a great gun and I wouldn't consider parting with mine. Keep shootin'