This is on Canyon C-IV (9mm), 6mm Bluewater acc. cord and a SMC rigging ring (28mm I.D.). This is also the smallest rigging ring they sell.
Yes, I know I forgot a wrap on top but this was just for demonstration.
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Bask side with (2) twsts before passing back through the ring.
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And this the the result of a sharp tug. It would be considered a shock load but also far under the shock load experienced from a slip or fall. This is a catastrophic failure in my opinion. Even though it still holds, you cannot fix this without taking your load off the rope...which cannot be done if your stand/stick broke causing the situation.
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Given the rope is 9mmx2 for 18 mm plus 6mmx2 for the acc cord, a shock load can pull approx. 30mm diameter of rope through a 28mm opening.