You don't want to use paracord for two big reasons. First, 4 feet or lanyard hanging off you is not only a hassle, it's a hazard. Second, if you get hung-up on some moving object or in a fall, the 550 pound paracord will not release. A snap swivel on the lanyard should have about a 50 pound hold so you don't end up dangling some place you don't want to be.