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seen Sep 29 '14 at 1:10

comment Using a Girth Hitch in Alpine Draws
While I agree the girth hitch doesn't provide a real advantage in this situation (and that's a reason not to use it), strength reduction in the sling is probably not any reason to avoid it. As Long and Gaines document in Climbing Anchors, 2nd Edition, no piece of climbing protection rated at 10 kN or higher has ever been known to break, even in extremely severe (high-factor) falls. The sling would probably have to be badly frayed in the girth hitch (enough so that the climber would presumably have noticed it on inspection), or chemically damaged, for this to cause failure.