Used to connect leader to fly line, as well as fly line to backing.
Lay your fly line and leader parallel, in opposite directions, with five to six inches overlapping.
the nail between the two lines. Double the leader back along itself,
then wrap it six times around itself, the nail, and the fly line
(moving toward the tag end of the fly line).
Be careful to wrap
carefully so the line doesn't overlap.
Grasp the tag end of the leader (which should be the butt end) and insert it through the middle of all the lines
and along the nail. The tag end should stick out of the wraps.
Pull slowly on both ends of the leader and remove the nail.
Wet knot to reduce friction.
Pull again on both ends of the leader to further tighten the knot. Trim the ends