I recently made the jump to 1911, after many years of toying with P35's,Glocks,etc, and even a CZ52 thrown in. I have disassembled them all for reasons of maintenance and improvement, and had no problems with reassembly, that I can remember. I've been shooting, cleaning, and maintaning guns for over 25 years. Then comes the most frustrating thing I've EVER come accross. I can't get the slide stop pushed back into place after a simple field strip. I've depressed the plunger with a fine screwdriver, I've lubricated, tried every thing to a simple slide and push, to a very hearty rap with the palm of my hand. It WILL NOT go back in, and the bottom front of the notch on the frame evem shows signs of peening. A pistol built for the military man can't possiblely be this difficult. Can it? What am I doing wrong?