Cable ties do things with strength that you just can't do with paracord. I carry some 6 inch ties when I go camping / hiking in my repair kit. We had a hip belt quick connect (on a "new" pack) split. A zip tie squeezed it together enough so that the belt would still snap together. It lasted another 45 miles at Philmont, and as far as I know, its still on the pack. You just can't compress that type of connector together reliably with cord to hold together for any length of time. It is unparalleled at some types of expedient gear repair.