One should be chary of making much of knot names
–i.p., that “surgeon’s knot” might turn out to be the
reverse, or the double : respectively the finish, only,
or both halves, given the extra twist. (IMO, having the
extra twist only in the “first throw” --which purpose is
to gain temporary holding in slicker stuff so to give time
for making the 2nd throw-- leads to a less secure knot,
as the single-twisted finish (if only this, and not a series
of them) has a longer span to cover (its single twist atop
the double) and so will be less tight.
–dl*
ps : E.g., today I answered a query about what was
the right “inline Fig.8” eye knot --there was a contrast
of ABOK’s #1057 vs. 1058 (<-right). So, that knot
name was, in the world of the Net, able to confuse.
(No surprise … .)