Furled leaders

[aged_sage]

One other question, when using thread to furl a leader, doesn't the thread leader get soaked through and sink rather than float?

John has provided an excellent answer, to which I would add that when new they can be saturated with materials that help water proof them if the little bit of sink is a problem. If so treated, they will need to be periodically 'dressed'; not unlike a silk fly line. I use Guetermann polyester thread for my leaders. Like John said, they tend to sink slightly ("ride just below the surface"). I do not find this to be a problem.

Cheers!