This will be a good test then. I will be using the cinch buckles on my thru. Everyone take bets on who will fall first!
I have seen how the straps rest on a hard edge, but I don't see it as a problem with ym straps. I am using the heavier 1" polyester straps rated at something like 3400 lbs. If you use lighter straps that have a much lower rating, then I would be concerned. Mine are pretty thick though, so I think they should hold up for a thru.
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