Page 490 - Bob Holtzman "The Field Guide to Knots How to Identify, Tie, and Untie Over 80 Essential Knots for Outdoor Pursuits"
P. 490
7. The knot resists slipping when load is applied to the standing part. It can be slid toward the standing part
to tighten the line, or slid the other way to snug up against the fixed object and put slack in the standing
part.
Untying: Slide the knot along the standing part to create some slack, then
undo the final Half Hitch to free the working end.
486
