BD has a brief blog post testing knot strengths: http://blackdiamondequipment.com/en/experience-story?cid=qc-lab-what-is-the-best-rappel-knot http://blackdiamon

BD has a brief blog post testing knot strengths: http://blackdiamondequipment.com/en/experience-story?cid=qc-lab-what-is-the-best-rappel-knot http://blackdiamondequipment.com/en/experience-story?cid=qc-...