mule tape will break. trust me. its rated for 1800 pounds. we used it on a cable puller with a force gauge and it broke at 4000 pounds.
i have even used it for a dockline in a pinch. also works well for chum bags. if anyone needs some mule tape let me know the footage and i can send u some.
when u pull wires put another pull string on that wire so u already have a new one in there and dont have to fish it. also dont tie wrap a bundle of wires together. that way u can remove just ONE if u have to.