Well I have draw a 1911 on more than occasion, not that more than one wouldn't be enough, and had to readjust my grip to defeat the grip safety. Many men who have carried the 1911 into harms way, Marines and Texas Rangers just to name a few, have been know to dog down the grip safeties. It' a personal thing, based on one's experience, one way or the other. What ever works for you is best for you, as they say.
I'm aware. Just said I didn't need to do it. When I was doing CQB training with fellow Marines from SOTG, several of them (but not all) had their grip safeties pinned down.