I just got the same setup myself, except that I went with the $10 upgrade on the straps (i.e. 96" in length). So far I haven't had a chance to get out in the bush, so the straps are super long for hanging in my backyard (from the posts of my pergola). I just wrap them around several times - it helps keep them in place before the hammock is attached too.
Near me (I live on the edge of a reserve) we don't have very big trees, so I could always find a spot to hang even with the short straps. I do, however, often go elsewhere, and the trees in some of my favourite haunts are pretty huge, and I'm pretty certain I'll need all 96" for them.