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@ffm
I didn't realise that it was 2 chains. That is a good idea, but if that makes it the same weight as one properly hench chain, which is properly uncroppable, then it reduces some of its appeal. It would be useful in the video to see more of the internals of the chain
My suggestion would be to layer it up as follows (from inside --> out): chain(s); chainsaw fabric to protect chain from power-tool cutting; multiple thin (2-3mm?) steel cables run lengthwise to protect chainsaw fabric from knife/scissors, fabric cover to protect frame. That way you'd have to cut off the outer fabric with a knife/scissors, snip all the cables with wire cutters/pliers, cut through the chainsaw fabric with knife/scissors and then crop/angle-grind the chain. The weakness would still be tension attacks e.g., jack or scaffold pole.