Preview to Three Ways to Lower a Climber Off of a Plaquette (Auto-Blocking Tube) Device
There are a few reason why a climbing team may choose to lower the first climber down rather than have them rappel. There are times you might need to perform a short lower during the climb up but also might use lowers for entire sections of the descent. For different needs, different lowering techniques might be appropriate. The full video demonstrates three different ways.
Follow this link to the full video and accompanying blog post.