I'm finally ordering myself a Hennessy Hammock. I've been using pieces and parts for a couple of years always wanting one, so I've decided to just order it. I was going to get the Explorer Deluxe with the Hex Fly. Weight will be about 4 pounds, but that's lighter than my tent and tarps I carry now so . One question I have is straps. Should I get the 72" straps or the 42"?