If I have to carry, I am allowed to Open Carry here in South Dakota. And for that, I have a Taurus 1911, .45 ACP. The self defense hollow points are so hollowed out, the business end makes 'em look like wastepaper baskets!
I carry in a Blackhawk paddle type holster that requires me to press a button on the side of the holster to release the pistol. And as I draw, the finger is automatically registered "safe" along the slide. I spent the better part of two and half hours at the Cabelas store in Mitchell SD talking with various employees and trying out different holsters. A former Marine and a former Army grunt both agreed that the Blackhawk was a good and safe type holster and they showed me all the different ways to set up the holster for different carry options. The one guy even had me try to pull his sidearm from his personal Blackhawk holster...and even knowing how the catch worked, I simply could not get his gun away from him while he made no effort at all to prevent me from drawing it!
When carrying a backpack in the woods, as I often do, I convert from a paddle holster to a crossdraw on the left shoulderstrap. Despite thousands of hours in the woods where we have a very healthy population of mountain lions, I have never seen one. Ever. But if I should ever have to scare the litterbox decorations from a cat, I can do that, too.