The way the system works you might be putting double that weight on the buckle. I would go with the JRB tri glide they are proven to hold up to human weight in a dynamic stress environment like hammock hanging. the worst that might happen is a shug esk butt plant from about a foot up. When you test this you should stay low incase there is failure and only hang as high as your willing to fall. Theres a lot of harm that can be done from a broken tail bone and no one wants that. Safe hanging!!
-JP
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