If you head down to a local park, I am sure you can find a pair of suitable trees or structure to test your hammock on. Your stock suspension with your hammock has a useable suspension with it. It is not the most easily adjusted, but with the tree straps and the suspension rope, using the Hennessey figure 8 lashing is a good way to start and for those Hennessy hammock owners that haven't discovered this place (shudder) yet, then it is still widely used.
Sooner or later your going to switch out your suspension to whoopie slings and from that point you will be all set.
Last edited by BrianWillan; 06-18-2011 at 10:11..