I have three or four holsters for my LC9 that work fine in my LC9s.
The one exception is my Alabama Holster. While it works great with my LC9, I can't use it with my LC9s. The fit is so tight that it takes both hands and some effort to remove the LC9s once inserted. This would seem to indicate...
My LC9s is only a couple of day old and I notice the magazine release is really stiff.
Mine is really hard to release to the point of being impossible.
Looking at the rear of slide (unloaded gun of course) I can see what appears to be the striker being moved rearward as the trigger is pulled...