Very good question mate, i would say that an engineer would be the person to ask, as you should be aware that like most things accociated with the scaffold industry there are always safety rules and regs to be addressed, like anything else a rope should have a test certificate and a maximum working load, it is a fact that a rope will break when it exceeds its maximum s.w.l, now i am just a dumb ex scafolder, but if i was concerned about anything such as your question, i would seek advice from an expert, i know that this does not answer your question, but if in doubt, dont do it.