Double loop the 6 & 9.
This is ambiguous to me --the "doubling 6 & 9" ::
do you mean to have the S.Part turns repeated,
or have the Tails run twice through them?!
In the first case (S.Parts),
note that there is a half-doubling possible :
make a full 360deg S.Part turn (vs. usual 180 or 540)
and collar the opposing end, then tucking out,
the opposing side reciprocating.
A concern I have with such extension of the
S.Part's path is whether it when used, e.g., in some
tow line or whatever that might see extended cyclical
loading, will the extra bit of movement available to
the S.Part spell *chafing*?! But perhaps in cases
--such a dropping a load on the line-- of a single
dynamic load, the bit of extra compression helps!?
--dl*
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