Slow Pull Testing 3 to 1 Haul Systems on 11.5mm PMI Isostatic Rope

We broke twelve 3:1 haul systems built with 11.5mm PMI Isostatic rope with 8mm PMI accessory cord prusik to:
1. Identify the weakest link
2. Identify the failure mode
3. Quantify the failure strength
Results:
1. The weakest point is the knot on the load side of the rope
2. The location of failure was where the rope entered the knot
3. The average knot strength is 20.6 kN (4577 lbs), with a standard deviation of 1.7 kN (389 lbs), and range of 6.2 kN (1392 lbs).
4. The results were consistent for all the haul systems built with the same components, however the haul systems that were built with other rope and accessory cord combinations provided different results.
The results will be presented at the International Technical Rescue Symposium (ITRS) 2015. When the paper is finished it will be posted on the ITRS web page at:
www.itrs-online...
Or visit the SARRR research archive web page at:
sarrr.weebly.com/

[@buildingusa9604]

What happened with the results? How many pounds to take breaking point?