Okay, finally figured this variant out:
...
Will photograph and upload in a few hours...
Great, thanks! (I leave open any exact *routing* of the tail on its near
stitching of the mirrored loops together--and that lack of (needed) specificity
is one of the beauties of the structure (but, again, again, we should recognize that
many of the commonly known knots have much the same vagueness to them
(with or without actual insignificance to behavior--it simply isn't noted & known!)).
My initial impression is that these 'mirrored' bowlines are a technical exercise in knot tying
but do not really impress upon me as offering anything elegant and simple in structure. Okay, they
are seemingly secure and stable but I just can't see the masses adopting it into their daily repertoire.
Bah, humbug, on this mistaken impression (IMO ! ).
Rather, you should see how nice it is to employ a well-know structure
(I do think that the Girth/Cow hitch base is better than the Clove)
with also should-be-well-known tying method (the "rabbit in/out of hole" travel of the tail)
to get a robustly secure, amply loose & easily loosened, and likely strong--both from
gentler bends AND from some force absorption from all the *knotting* in the structure--
knot so easily. Granted, the "rabbit" tying method isn't as handily quick as others,
but with the given base of the Cow (especially!), the tyer is unlikely to bring the end
through it from the wrong (anti-bowline) side of the now-mirrored central loop(s).
AND note that with the Cow base, doing so results in a workable interesting (and
(**NON**-bowline, like Derek's is non-) eyeknot. (Well, the knot I'm thinking of has
the "wrong side" entry, but then the tail must collar the "live" line / SPart, not an eye
leg.) It seems a very good knot to deal with STIFF ROPE. (I simply find it hard to
accept that the YoBowl and the ancient simple Overhand tie-off can work in it,
despite some now assertions to use of both in PMI Max-Wear & other stiff ropes.
I'm saying this upon my own tying it in 11mm (or 10.x, geesh) climbing rope and
some old low-elongation rope of unknown origin.)
And consider how much friction the reeved tail has in going back'n'forth parallel
to itself: there is a lot of material contact there for movement to overcome, not
merely at the points of contact with the two loops.
Note that in the common bowline (#1010), when in use as a LEAD climber's tie-in,
the tail points upwards, and gravity can help pull it back down through the loop;
whereas the Janus variants point the tail SPart-wards/downwards, and have gravity
assist in keeping it so. (Note that top-grade climbs have challenged this assertion
by having such severe overhangs that the knot might be in a horizontal plane!)
So, in some of these variants one can see that the tail must go in opposite directions
re gravity in order to come completely untied (and will reveal partial untying by having
a long flapping tail to be aware of, felt/seen).
with yosemite finish
And note my guidance on an alternative like finish, given previously, to nicely complement
the YoBowl's appearance on top-half of that page. DO give this other path a presence.
Am also still trying to fully understand the geometry and possible benefits of DerekSmith's crossing knot/munter
variation of the bowline. Now I see that structure as being much simpler than the mirrored bowline.
Again, don't call it a "bowline" and further the corruption of that knot-notion.
Please reflect on what "simple" constitutes: doing an easy action many times
can build a maybe complicated-looking structure, but repetition itself is pretty simple.
(I have now a remaining 100' or so of simply grossly entangled conch-pot warp, just
salvaged from the beach, which had some duration of water-worked pot rotation to
build considerable wrapping & inter-bight knotting. Patience, and some backward
unwrapping, and backing out ever-lengthening ends (and some uttering of oaths)
is bringing me nearer to success. --hoping to put this rope to use in destructive
testing (yes, aware that it is of dubious uniformity and quality to be greatly indicative
as a model, but, hey, it's free and some results might shed insights ...).
Added mirrored bowline and made a few other image enhancements.
NOTE THAT THE MIRRORED BWL. SHOULD **NOT BE SO TIGHT** ON THE SPart!!
Wow, Derek's GeeSpot is throbbing, there!. And in Janus cases, too: although the
structure has symmetry of entanglement, the
setting should be biased so that
it is the collar around the eye-leg getting pulled relatively tight, while that around
the SPart is not.
--dl*
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ps: How does 2009 look, so far (you early adopters!) ?