I carry with an open top type holster most of the time so I have had the ambi safety get pushed off many times over the years and prefer the single safety. The trigger is covered so there never were any accidental discharges. When doing weak hand drills it's not hard to learn to push the safety off. My competiton guns all have ambi safeties.
On alot of holsters,custom made too,have the molding done with the safety off,it isn't the easiest to find all the 1911 variations in a blue gun for molding made with the safety up.It's common for an ambi to be knocked off carrying if anything touches your side,happens to alot of people.
Since I'm a righty,I have no use for one.My index finger can swipe it off on the grip if I grab it with the left hand,and if it's being transfered to my left the safety is off already.There's also the issue of the joint loosening.If they are fit correctly with a positive stop for the rt side they're fine,quite a few aren't fit so well.The issue of tension is a great point,I've seen many that come off easy but go on harder.I've had to adjust many of mine,new gun or a replacement.A little finessing of the plunger bearing surface cures it pretty easily and you can set the tansion to what you like.
I've carried Condition 0 a few times not realizing it got knocked off,doesn't make me feel unsafe but some freak right out.The reality is,what's going to happen?Shy of a sear or hammer hooks breaking,it can't go off-you have the equivolent of a Glock at the very least,but technically it's still safer.
I think he meant to say mag release.
Rt handed I think it's arguablly quicker to just trip the slide release after a reload as you reaquire the support hand grip,shooting lefty I slingshot it.I don't think they are made anymore but I never subscribed to the ambi slide release,but HK figured out the mag catch long ago.I'd love to have that incorporated into a 1911,so the best I could do is go out and put a USP Tactical 45 in the family.What a nice friggin piece they are!
IMHO the only reason for an ambi safety is if you're left handed. They rip up my shirts when carried concealed. If my right arm was shot I can still flip it off with my left hand without issue.
I did notice a few times that my holster rubbed the safety on the left one and clicked it off a few times too.....that was the final straw.
Your results may vary.
I don't want any externally settable safeties or decockers of any on my carry guns. All I want to do is "pull and pull"* if I have to employ my sidearm. The last thing I want to worry about is a safety and its state.
* "pull and pull" = pull the gun and pull the trigger.
I don't like them,, My Combat Elite has the small ambi on it, hurts my right hand. I also don't like the extended safetys, took one off my Kimber and put on a std. Colt safety. I have a Ruger SR1911 with extended safety and it may be OK it's shaped differently than the Kimber was.
OK that's weird, that post is listed as today but I've seen it happen before.
I prefer certain extended safeties, I feel better using my finger over the joint to operate it. What I don't like is the wide ones or the thinner versions with the squared off rear. Ed Brown and McCormick's "tactical" safety have about the perfect shape for me, so I'll just reshape them to that profile.