Here's another running debate (for me anyways):
Do you clip biners in series (i.e., linking draws together, or clipping
a draw to the biner on a piece)?
I've seen enough people do this (34 stories omitted) to make me question
my own rejection of its safety.
I think the physics argument would go something along the lines of
metal-to-metal contact concentrating all the transmitted force at one
very small point, and in one very particular direction; whereas slings
absorb and then dissipate the same force as they pull on a biner,
allowing for more directional adjustements as well.
I've also heard things about gates being forced open.
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