BBmans technique is the one shown to me by a gunsmith named John Miller in the Marlin repair dept in the early 70's. He had been with the company since well before WW2. I will only add that the handle end of the screw driver (with the notch in the blade) was placed against his stomach with the blade set against the punch. The punch had been set into place of course already, the trigger plate screws set down enough to draw the plate into light contact with the spindle of the top lever. This left both hands completely free. He gave the driver handle a gentle nudge pushing the spindle over and with his hands and thumbs pushed down on the plate snapping it into position and if needed pushed the top lever back upwards a bit with a hand in the assembly. The punch used was a 'pin' punch, largest diameter able to enter the screw hole. He had an entire drawer full of LCS 'tools' and was the only one in the repair dept that was entrusted with disassembly/reassembly of any vintage LCS that came in. Most that did were turned down for any work anyway for lack of parts but the Col. wanted to see each and every one that came in no matter what grade or vintage!
