Thanks for the question. The longest length 16 mm Nylon Slings we have are 240cm, so maybe not long enough to use as a traditional cordelette (the typical length is about 400cm). With regards to the drop test, a traditional cordelette is not used in such a way to re-create their test but it does bring up a good point: introducing knots greatly reduces the breaking strength, and that having any slack in a belay system is best avoided. I highly suggest contacting DMM directly with any technical question, as they're sure to have a precise answer for you. Thanks!
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