Well, I was thinking mainly of Hobbs second post. Again, he stated he's not had a problem. But when a guy many of us look up to in matters 1911 says a guy he looks up to in same says something, it certainly warrants attention. In this case, the gentleman in question won't use them as he says they have a weakness (in reality, many parts do).
Then again, my stock extendeds on the D. Warrior and the Loadeds are working pretty well so far.
I'm just picky on these things. Years ago, my first ambi 1911 safety was Colt's. Like stock, but on both sides. Then I bought an MS Safari Arms based on the Swenson patent. Maybe it was installed wrong, but there was a huge amount of slop. I sent it back and bought real Swenson levers, in stainless steel (anyone still selling these? Did his business pass to anyone when he passed away, or is all that history).
Armand was a class act all the way. Used to call him now and then, he'd tell me about the mountain lions he'd seen on his property that day, or some such.....