1
A ground runner keeps the rope out of the climber's way.
2
This keeps the rope from fraying in the future.
3
This keeps the rope running straight and prevents that Z-shape that causes severe rope drag.
4
This low-profile knot keeps the rope flat, making it less likely to stick while pulling.
5
Sometimes you'll place a "critical" sling- asinglepoint that protects the second on a traverse or keeps the rope from a razor-sharpedge.
6
When you correctly thread both strands of the rope, equal force is placed on each strand, which keeps the rope from slipping through the anchor.