i realize no core; but don't weigh much even dripping wet; don't do fast bail outs; so maybe my personel results are slanted.
Also, friction must equal support; then lack of support (movement) is rest of force; so same support amount for given loading is same friction total. My friction total is not all in hitch, but some on support, some on leg too. i think in the flat line, the friction itself is spread out over a wider area, not concentrated in one line on edge of round cord footprint contacting host line. In each case total friction would be same, just less per contact 'inch' in the flat device/Tenex?? Another point i've wondered about, is if the flat loose braid of the Tenex would insulate heat less/ breathe more than a round cord with smaller footprint and rest of line insulating the heat in covering the contact area??
With a core would still probably be safer; especially if it didn't alter these charachteristics that somewhat counter intuitively make the performance and safety differances betwixt the choice of flat and round device/cord for hitch.
When the newer hi-tech cords were first introduced i tried some; and thought they didn't seat/ grip as well (due to stiffness etc.) as my ol'Tenex; and likewise suspected an increased strength loss due to this higher stiffness being arched around such tight bights as a krab and host lifeline. Also, i thought that due to same stiffness that it wore out/ glazed sooner. i've read that later cords lasted longer; but stayed at home with the Tenex.
i don't compete, weigh much, bail out fast and hard etc.Perhaps not for everybody; Tenex has served me well for years of considering many factors and observations.
i think eyes should be maid with Scaffold Hitches/ Double or Triple Noose; they have shorter bridge if desired, more inspectable than splice, can be done by commoner in field; and with less line. The tests on these 2 or 3 coil Anchor Hitches to self to form eye always come out unbelieveabley high from what i've seen. Unless you give a RoundTurn around krab instead of a Simple Turn; when ususally a Round Turn is an upgrade. i think the Anchor Hitch part that comes around and grabs the 'throat' of the Standing Part as it serves into the krab is reinforcing/ firming this delicate point of m/any failures. i think this point where full loading takes it's first bend before friction reduction of force is 1 cause of this being the weakpoint in chain. Also Standing Part side stretches as krab side holds other end thinning line at that same point that is under these most extreme loads and leveraging. i think that a Round Turn undermines this effect by giving more friction reduction of remaining force from initial force/ Standing Part to form Anchor Hitch around 'throat' with; thus reducing this firming/ fortifying effect.
Orrrrrrr something like that /forum/images/graemlins/crazy.gif
