Chopping Is Just The Beginning in Safety March 2, 2016 The pull force is affected significantly by the loading of the 3-ring and G-forces. I know one jumper who jumps 3rd party risers on his rig now because of a hard chop in a spin. He tried reproducing a hard pull on the ground and the only way he could do it was to have two friends help load the harness. With the added G-force the pull force became impossible for him to accomplish with one hand. Hanging from carabiners and not the risers your cable is routed through can never reproduce that. You don't need a repack cycle to chop with your real risers, but any loaded riser would be better than a carabiner.