Yes, I think that 8.1mm is too large for any of the
low-elongation lines that BD sell (one can check this)
–it might be a “twin” or “double” (or both) line.
The exact orientation OF THE DIFFERENT ROPES in
the mis-matched case is unknown --which made the
(initial) choke?
There is another site where i saw images of the actual test knots, however i need to find that again.?! Images of whose "actual test knots"?! I can draw my own images of these knots, but I cannot know how to drawn them like Kolin tied them!
With particular regard to the EDK results, we see slippage, however the slippage is first observed close to breakage point of the rope. This is quite different from the results i have seen in trials and those of agent_smith, I believe.I don't SEE anything but the word "slippage", and that's different; my inference is that the knot "rolled" --which seems apt for the load. Now, I must keep in mind my one-time stressing of #783(?) which spilled when it capsized, and believe the in such transitions there can also be slippage --possibly to the extreme of spilling!
And to your testing, please note that it would be
good to see if your fails(slips or rolls)-so-quickly
stiff small material could be tamed by tying the
“back-up EDK” to the first.