Double bowline is easier to untie after being weighted in a fall, and so is used by sport climbers who take multiple lead falls and then have trouble untying their figure eights. The disadvantages of the double bowline are that it is less secure than a figure eight knot, takes longer to tie, and is not as easy to check. Unlike the figure eight, there are many variations of the bowline, with ambiguous names, and some are not safe for climbing. The Bowline on a bight, when re-threaded instead of being tied on a bight, can also be used for tying into
Swing hitch parts both must hang from the same side of the branch, otherwise there will be forces rotating the swing seat right and left. Swing hitch reduces such forces by having the end pull the main part towards the middle of the beam and fixing it there; Using a simple clove hitch would cause more of these disturbing rotational forces. If the swing is attached to a living tree, protecting the sap carrying live layers of the inner bark may be necessary; Suitable measures of tree protection while attaching a swing include Swing hitch Swing hitch is a way to tie