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I've got a Cynergy Feather in 12ga. Maybe 800 rounds through it and nothing to mention.
However on assembly, the leading edge/point of the track developped a burr on it from me lack of understanding of putting it back together. The track is where both halves interact with each other. It was operator error on my part.
I have a 28gauge Cynergy Feather myself. It's great for hunting, but I use a steel 28gauge for shooting skeet. I have no doubt that the aluminum receiver will stand up to thousands of rounds, but I shoot thousands of rounds each year shooting skeet.