Hopefully that sorted it out. As DAO said, I too have racked them hundreds of time’s to break them in, and also left the slide locked back overnight, sometimes a few days. I have had a few where I removed the recoil assembly before doing so, so as not to put that many actions on the recoil assembly. I’ve found that it is easiest to rack hundreds of times by holding the slide put, and pushing the frame/grip away from you and too you. Much easier than holding the frame/grip stationary while trying to pull the slide back and forth. Hope that makes sense, but maybe you already know that and I’m “singing to the choir”.