This is a strong knot suitable
for attaching a heavy shock leader in fly casting or surf
casting. It is also excellent for attaching a heavy leader
to superbraid, although in this case the superbraid should
first be doubled using either a thirty turn Bimini
twist or a twenty turn Spider hitch. The braid loop should then be
wrapped for 10-12 turns around the leader rather than
the six turns illustrated.
For extra security an Overhand knot can be tied in
the end of the lighter line before snugging up tight.