Hi! Iike to try this one, maybe retucked.
It's like a bloodknot,
but with nipping loops in the middle.
No dyneema available..
NO, it's not like that --except by many of the quite
misguided images that float around, ignorant of what
the
blood knot should be! And I don't think
that your knot has much hope in HMPE, and maybe
not so much for even traditional rope, without some
careful setting.
I like the idea (presumably) :: of incorporating some
gripping coils for distributed nip and presumably good
strength; I've done similar things (but without testing
basis for really showing that they can work). Tying it
now in some marine polypropylene monofilament kernmantle,
I find that I can get more of a *hitch* in that one side
will grip the other leaving the other side's coils quite
loose --the first side's nipping turn & coils are gripping.
So there is this sort of "race condition" to deal with
in setting the knot, to try to achieve balanced loading.
Note that, contrary the true (angler's)
blood knot,your knot's coils *coil away* from compressing the
center tuck area. Working in fishing line, one can
tie the knot with the coiling in either direction, as the
setting will convert *away* coils (Barnes called them
"outcoils" or at least the "outcoil method", IIRC) to *to" coils.
But in rope, they can remain *away* and as such will tend
to have enough grip to pull apart (from each other, and
the center tucks) rather than clamp tight on the center
tail-tucks!
Now, for rope, this *away* behavior is consistent with the
goal described first, above; but it likely will take some
careful tight dressing and then setting so that the coils
take load immediately, in hopes of building grip before
some almost inevitable SPart slip --and once slippage
occurs, I think it then reigns as far as denying the
coils that hoped-for gripping benefit.
YMMV per material?
But in my quick testing of this ? 5/16" (8mm) line,
I'm seeing coil-to gripping, as for a
rolling hitch.

(Btw, regarding HMPE, I've come to suspect that frictional
heating --high pressure-- might lead to slippage by making
surface melt, and lead to rupture otherwise!? --in some
cases, anyway.)
--dl*
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