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Rock Climbing : Comments

Comments by markanite (1)

Article: Belay Device Friction Test
As iron106 pointed out, none of the devices have trouble locking off at -90. Also if you lock off on your side you're actually no where near -90. +90 (which i'm presuming you consider "feeding slack") removes almost all the friction from the belay device (because both ropes are pointing up and neither is bending around the device). Therefore measuring this would provide near identical results for each device (making it pointless).