On February 8, 2018 at 13:55, jrainey said...
200 feet? And then what are you pulling through there? At 200" I guarantee you are exceeding the pull rating on most everything if it is flex you are pulling through
If you're only attaching the pull cord to the end of the cables, you might try taping it at the end, but also at several points along the way. If necessary, tape it from end to end, so it's only pulling the weight from the last tape to the spool. That way, all of the taped points share the tension.