I switched to rappel rings when one of the triangles bent and cracked after three night's use. Don't know if it was bad to begin with or the triangles simply aren't made for someone in the 260 range. But no worries because the rings are solid as I could ever hope for, and my Blackbird is my palace in the air.
Rings don't hold nearly so well on their own, but with a simple overhand on a bight they are just as solid as triangles. Rings are MUCH easier to loosen and tighten.
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