... encumbering the transfer of applied hauling-tight force by gratuitous friction is a bad thing
I do not think so - simply because that is what happens in knots (
into knots,
within knots ), all the time ! In a non-local "knot", an "extended" rope mechanism, as the
Trucker s, the
TackleClamp and the
Double Cow hitches, this mechanism is just more easily visible = more obvious... Hauling force
becomes inner tension, which is transformed into friction, which encumbers the transfer of more tension, which encumbers the generation of more friction, and so on, until the whole mechanism settles in a state of mechanical equilibrium. Friction is always present, and "gratuitous" - there is no reason whatsoever one should not
utilize it, when he can, and when, at the end of the day, he will, the one or the other way... In practical knots, all we do is to try to utilize the offered, "gratuitous" friction as effectively as we can, in order to increase the security of the knot, so we will not need
more friction, which can only be generated by
more tension, meaning a more tightly woven = less easily untiable knot...
We should also keep in mind that, in the case of the
Trucker s hitch, we "bury" the Tail End under the one of the two opposing bights ( i.e., in between the two opposing bights )
only at the very end of the hauling process - so we can not say that some of the force we apply in order to tension the hitch is "wasted", because it is "encumbered" by the locking mechanism. In the cases of the
TackleClamp hitch and the
Double Cow hitch, the hauling force is not absorbed by the locking mechanism, because the two opposing bights are left free to move towards and squeeze each other, and so immobilize the penetrating line, only AFTER it is not applied any more.
I do not understand what you try to say - but, frankly, I believe that you just try to say something...
... all this "adjustable eye" discussion strikes me as a solution looking for a problem : there is in most of the
offered structures a need to begin with an approximation of size and in that sense quite a limit on adjustability
So what ? ? The moment we tie the whatever TIB loop we decide to use in a
Trucker s hitch, we also set a limit of adjustability... The same "problem" exists in the two-nub binders, but that does not mean those knots are worthless !
What those adjustable eyeknots ( or the two-nub binders ) do offer, perhaps it is not realized/understood beforehand, but it becomes crystal clear when we try to immobilize a tensioned line by other means : The gripping / nipping nubs of the adjustable loops and of the two-nub binders are tensioned from both ends,
with the 100% of the load from the one end and with the 50% of the load from the other - and so they become able to work as efficient constricting, "nipping structures". On the contrary, when such a "nipping structure" is tied at the end of a single line ( or at the tip of a fixed eye, as it happens in the case of
binder#34 (1)),
both its ends are tensioned by 50% of the load, so its efficiency is cut by half... That is why a single or a double nipping loop ( like the double loop used in
binder#34, for example ), tied at the one end of a single line, can not grip / nip / immobilize efficiently the other end, which will be tensioned by the 100% of the load.
1.
http://igkt.net/sm/index.php?topic=2981.msg17780#msg17780