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Tests show daisy chain tethers stronger than PAS 27-Jan-2016 At 9:37:24 AM Dave_S

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Drop tests performed by ENSM (French national school of mountain sports) found that daisy chains were more resilient than PAS-style personal anchors in a fall, with the daisy holding a fall factor 1 fall while the PAS failed. They tested with the Black Diamond dyneema daisy chain and the Grivel (PAS-style interconnected loops) dyneema daisy chain.

This is something I've long suspected - that the loop stitching on a traditional daisy would fail progressively, acting as an energy absorber while still leaving the 16kN end to end rating intact, while a PAS will fail as soon as any individual loop fails. That said, they do recommend that a dynamic climbing rope lanyard be used as a rappel tether, rather than a PAS, daisy, or static sling. (They are talking about when anchoring oneself while setting up a rappel, so anchoring yourself with the rope, as is often done at a belay, is not an option.)

https://www.youtube.com/watch?v=DpWKrghSLao