An interesting way to "tie on" leaders from Gamakatsu

Obviously this is for shorter leaders, but it might be just the thing for the "Alberto and FG Knot" impaired." I would use a clear plastic bead ahead of it to keep it from clanging into the tiptop, but still, its a, interesting new concept (to me, at least). I'm not sure if this has any real advantage over a simple barrel swivel, but its new, and that's why its here.