The grip circumference is large enough that a 90 degree trigger press while riding the safety on a 2011 causes the top web of my hand to not put enough pressure where the grip safety disengages. It seems to be an interplay between the angle a disengaged safety holds my thumb, the location the grip safety disengages, and the size of my hand.
If the grip safety on my staccato disengaged with pressure closer to the top of the beaver tail, this wouldn’t be an issue. It disengages lower down. So my grip (right handed in this case) puts pressure along the right side of the gun, and the web of my hand is putting pressure into the beaver tail grip junction. The angle of keeping my right thumb on the safety causes the web of my hand to not put enough pressure where the grip safety is designed to disengage.
I have never experienced this issue on 1911s.
Changing the stock trigger to a short Atlas also allowed me to press the 2011 trigger with a lot more of my finger without compromising grip. Before that change, I would have to grip the gun differently than every other pistol.
It bears repeating that I have small hands, and a 2011 is the beefiest pistol I shoot.
The hand size/geometry thing is something I don't hear talked about much...not sure if it's because instructors don't want to allow it to be an excuse or a mental issue for their students, or if it's just not well recognized or understood how to account for it. But over the years, I've noticed that a lot of the really top, high-performance handgunners I've personally seen seem to have abnormally large hands. It's definitely
not a universal, but it's a pronounced pattern I've seen. And when I've heard them instruct, a lot of them don't seem to recognize how that's working for them in ways that are difficult to replicate for people with different hand geometries.
I first dealt with this back in the 1990s when switching from 1911s to a couple of Para Ordnance double-stack .45s. They were quite a bit blockier and thicker in circumference, and I had to re-work my grip a bit. I don't have small hands, but their geometry kinda results in similar problems with thick handguns. XL to XXL palms in thickness, but L finger length. When I touch thumb-tip to finger tips, I have less empty space than some girls I've dated, even though my hands are comparatively enormous to theirs. That empty space translates to reach and leverage when gripping a gun - or lack thereof. It's a really quick way to gauge what kind of guns and grips are going to be more or less work for someone.
A lot of the problems you're describing are ones I deal with too on 1911s/2011s - the biggest issues definitely relate to the thumb safety. Even with extra-short triggers, it's still extremely difficult to ride the thumb safety without also riding the slide and causing malfunctions. I've gone through about half a dozen different grip styles in how my support-hand's working the gun, and the best performing ones also result in the meat of the upper heel of my left hand, just below the thumb joint, activating the thumb safety slightly and interfering with the trigger internally. I don't want to give up that performance from the grip or reliability of riding the thumb safety, so I just picked up a couple of shielded thumb-safeties to fit onto a couple of my guns.
Regarding grip safeties, I had to open up the pathway in my Staccato C's for reasons similar to what you're describing, and similar to what Form's describing, though not as fully. But the trigger was contacting it enough during the press, that I needed to open it up more than a little, until I couldn't feel the grip safety moving at all during the shot process. But that C is a heck of a lot easier across the board to grip and shoot without a bunch of reworking of the hand positioning than any of the 2011s I've picked up.
One other 1911-esque gun that solves a lot of these problems, that might be worth considering for CCW, is the Dan Wesson DWX Compact. Excellent ergos, good beavertail but no grip safety, and super thin for a double-stack. The full-size DWX is blockier and chunkier, and wasn't interesting to me, but the Compact is one of the most slept-on, underrated CCW guns out there, for anyone in the SAO/1911/2011 space. I've got close to 20k rounds on mine, with the only reliability issue being a need to replace the extractor spring after about 10k rounds.