its not that the rope actually physically will stop you from dropping what cliffs are even left at alta, its that the patrol will pull your pass if you duck it. and good luck, they have cameras at EVERY rope, and will be waiting for you at the bottom with a lcc sheriff to pull your pass and arrest you. so why go through the bother when you could go to the bird, where they even do sweet shit like fill in bombs holes under cliffs with their portable powder machines, and give you bong rips and hi fives after you go huge.