Hola everyone. I am a lefty shooter and have recently developed a problem with my 1911s. I'm experiencing a bunch of FTFs where the slide stop is partially pushed out and is locking the slide back before it can chamber a new round. It is remedied by ejecting the mag and pushing the slide back until the slide release pops back in. Seems to happed more on the last few rounds of a mag as well. I think I have somehow changed my shooting grip and am letting my right (support hand) thumb slide forward on the fram until it slightly pushes on the slide release nub, causing it to slide out as the slide travels back after firing. I want to just file down that protruding nub so I can't push it anymore, and use a punch to get it out during dissassembly. My question (finally got to it) is if I can just file it down flush to the frame, or does the strenght/function of the slide release rely on that last little bit sticking out of the right side of the frame. My guess is that it is there for ease of dissassembly and has no particular use. Also, the ejectors of both of my 1911s (Kimber CDP Pro and 70's COlt Govt) are loose. They don't come off, but they do wiggle a bit. Is this normal? No ejection problems to date on either pistol. THanks.