As for point #1, I finally sold with some regret an Adams .50 cal. five shot DA revolver with the cocking aid spur that projected through the triggerguard only because the frame was about half broken through the rear junction of topstrap and recoil face. The frame was bent enough that the cylinder had about 0.030" (may have been more) fore and aft play! Fully intended to shoot it, but the repair was just too daunting. Plus, all but one spring was broken...