I tried rigging up an old double handled manual downrigger with Dacron line. (Thought I was so damn smart!) Made everything very nice and compact, but there were two inherant problems: 1.The line bit into itself on the spool so hard it became a mess. Actually sliced the spool apart and,2. When, not "if", but WHEN the Dacron touches ANYTHING that is the slightest bit sharp when under tension, you lose your gear.Older...smarter...using rope.