Made up a set of lines from Fly-by-wire bulk a few weeks ago. Had the same unwinding difficulty described, but only for several inches. What was very noticeable was that the F-B-W lines were long spiral twists, much less per foot than the MBS tighter spirals. Not sure how that related to usability, but they passed pull tests and seem ok. Once made up they seem fine. No problem with rolling up or out, but I would not buy again.