Originally Posted by Ramblinrev
I'm missing something. Animated Knots shows the girth hitch as a Larks Head although it is demonstrated with loops on the site. It does list the Larks Head as an alternate name. So are you saying the Larks Head done with webbing is an unstable knot except under load? I was under the impression it was quite stable and therefore useful for such application as whipping hammock ends. What am I missing?
As with most things in life, the devil is in the details.
The security of any knot depends on both the application and the material used to tie the knot.
The main problem in using the girth hitch, aka Larks Head, in this application is the webbing and not the knot itself. Webbing can be very stiff, i.e., hard to bend. That stiffness of the webbing causes the webbing to not only resist bending, but also to attempt to return to it's original unbent form. In attempting to tie the girth hitch around the ring, the radius of the bends is small and the resistance to bending commensurately larger and the forces attempting to return the webbing to the unbent form larger. In this application, the forces can actually be large enough to undo the knot enough that the webbing will slip off the ring entirely when unloaded.