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Opis:
I thought Petzl GriGri's would break the ropes if pulled hard enough but they slipped, even the 11mm rope. These were slow pull tests and I'm curious what will happen in future drop tower test of the same thing. We also tested a Beal Birdie which feels like a hardy steel body but I wasn't that fond of using it when it because it went from locked to open quickly.
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