Zig zag is dangerous. Several recalls for cracks in chain, and some failures too. Do you want to see family at the end of the day? Get the Spider Jack or use standard friction hitch cord.
Failures were with 1st generation model which was recalled.
Cracks in chain links have caused zero documented failures to date, and destruction tests by the manufacturer have shown no strength loss. There has been no second product recall.
I think amping up the hysteria "do you want to see your family at the end of the day" for a product I reckon you neither own, nor have tried, is what it is......dumb.
Btw. Please don't send me mother threatening PM like you did the last time we had a disagreement over some other dumb thing you said.
I own two ZigZags. I climb on them daily.