Most of my posts are tech related, but I just finished a climbing class and wanted to post a few tutorials that I thought were helpful.
Here’s how to setup an extended rappel:
https://www.youtube.com/watch?v=7U6tdEevJgs
The only difference is that I like to tie my hollowblock in before I put in the ATC. Make sure to always test your system, take your time, and double/triple check.
Learn the systems on the ground first before going outside.