Here's a dumb newbie question. What is the hammer spur for on a 1911? There's two basic ways to carry them, right? 1. Unchambered. Then rack slide to get ready to fire. So no need for a hammer spur. 2. Chambered. Hammer is already back, and safety is on. So no need for a hammer spur. Does anybody actually uncock a 1911? Doesn't the design suggest instead to just put the safety on? And if you want unload, then pull the mag and rack the slide? So, why the hammer spur?