I've been thinking real hard about getting a 1911. I've looked at a lot of them and like the way they feel. I haven't decided on a particular one. I've been reading that 1911's take a lot of "tuning" and "tweaking". What do people mean when they say that? I'm not a master gun smith or anything but can usually get things apart to clean them and back together but I don't know about tuning a gun.