I got these recently and have used them a few times. So far so good and they haven't loosened. My concern is that if either of them sees the cable sagging, they will lose some of the tension in the cable and slip off. The time will show. They are easy to adjust and once on the line will not be lost unless the line is severed. I use them on my Marmot Limestone 6P 3 Season tent and on my Big Agnes Three Forks Shelter. I don't think they are suitable for use with the Cabelas Alaskan Guide tent which is a four season tent that we use in extreme conditions. I use it with 550 Tactical 550 Reflective Paracord with 3/16" holes. I don't think they're flimsy, they work with smaller diameter lines too
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