Xarax provided this link: https://forum.igkt.net//index.php?topic=1980
However, some of the images are lost.
I have presented the "360" structure you give for Thrun's Joint
some decade+ ago, in chatter w/EStar (Evans Starzinger),
looking for e2e joints that would work in HMPE. I applied
the "360"ing to #1452, AND THEN made a 2nd tuck of the
Tails through the 360'd nipping loops --which EStar said
did NOT not slip <egadz!!?> !!!
In the cited thread above, Xarax goes one turn further,
getting "540"ing, where the line collars itself (not the
reciprocal collaring of each to the other); this makes
for an overly bulky knot, IMO. (He also shows the knot
w/0 540 but doubled collars, something I too have fiddled.
I suggested --by tying modification-- the Thrun Joint (Zep)
360 --to wit ::
I'm a little surprised at your no-difference results; in any case,
it is only the first (double collar) version I'd use. You might try
an in-between version, where the main loop goes not 180deg
or your 540 but 360 degrees, to collar the opposite line.
This confirms that his images --1sTwo visible outright to me, today,
and the 3rd via download; the 4th is lost-- presented by X. do NOT
hit the "360" on the head, but certainly could inspire someone to
go the not-quite-so-far reach, as you've done.
I am trying to establish the history of the Zeppelin 360 bend.
Then look to my presentation of the technique on #1452; THAT
puts the structure out to be used one whatever it fits, as desired.
AND anticipates (unless mine followed?) X's 540 (and so on & on ...).
... admonish me for wanting to make a claim
We don't need or have all so much to do with per-knot "claims" such has this.
and/or trying to establish the history of this 'bend'.
Noting that we STILL are looking for the history of the
knot you've amended --Thrun's Joint hits solid ground
for Bob Thrun's discovery AND presentation of it;
but what of the presentation that got it renown as
"the Zeppelin Knot" ?! THAT remains ungrounded.
Maybe that "Joe Collins" --whom I recall Roo finding
nominally among USNavy personnel at that time--
discovered it for himself somewhere along his being,
and thought to invent a myth via Boating's article
to popularize it? Or ... <some otherwise> ?!
(I can say that I also discovered it, ca. 1986?,
well antecedent to above disclosures,
working from fiddling w/SmitHunter's Bend.)
(-;