That's interesting on the RRA failures. A bad batch of triggers sounds like a likely story. I function-tested mine carefully at install, to ensure there was sufficient margin. They seemed solid. Admittedly, these are toy guns, and the only build that was for me personally has seen 1-1.5k rounds in the last five years (I don't keep a notebook on toys, but I do know how many 69gr SMKs I bought for it.)
Regarding the stoned triggers - they were parts-bin matched and lightly polished. I've heard nothing but good things about them, and my experience has been great.
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