This is not the first video on YouTube I've seen discussing this subject, but I'd thought I'd give my 2 cents.
I discuss what the auto-block is for belay devices, and when it is used for belaying. (No discussion of self rescue in this video).
Black Diamond's ATC Guide is a great belay device featuring the auto-block, others include the Petzl Reverso, Trango B-52 (review coming soon), and Mad Rock makes some as well.
Please take my advice on how to release and lower someone tied into autoblock with caution. Please be extra careful when first trying this method.
***Disclaimer: I am not responsible for your's, or anyone else's, actions for mistakes made during climbing. Use at your own risk.
My methods are not official, not endorsed by any climbing manufacturer, or school.
That being said, super easy, and fast way to lower someone quickly, and get your climb on. Mad props to anyone using this.
