Here's my last word.
http://findarticles.com/p/articles/mi_m0BTT/is_178_29/ai_n15628947/excerpt:
The Warriors include Kimber's new design for an ambidextrous safety. Typically ambi-safeties have relied upon an extension on the right side riding in a slot cut in the grip. This was the original Swenson design that has served well for decades, but is subject to damage and also provides a nice place for dirt and crud to gather. The other option came from Colt to avoid Swenson's patent, and used a longer sear pin with a slot cut in it to accept a corresponding area on the right-side safety lever. The drawback of this design is the risk of jamming the safety if the sear pin is damaged.
Kimber's new design eliminates both of those possibilities and uses a slightly longer hammer pin engaging with the right side safety lever internally. It leaves nothing exposed for possible damage and the operation is sure and positive.
They really did want to be able to hang lights on the guns and that was something Mr. Browning had neglected to provide. What they wanted was a basic 1911 very much like the original, with a few modern upgrades. What they did not want was a newfangled external extractor, firing pin safety or full length guide rod.
Marines seemed to think it adequate. Moreover, JMB, didn't envision light rails on his 1911's either, yet there they are.
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Unless, I'm missing something, like abuse or otherwise harsh treatment of safeties, they can and do work. You right handers got the majority, and that's fine, but in many circumstances, not the 5000 rd a month folks, they provide a reliable option.
"and that's all I've go to say about that."
tw