A very good point; I find the exact opposite true. I prefer a little stretch to my hammocks, while I need a fairly firm mattress for comfort.
That being said, you don't need an adjustable ridgeline for your ridgeline to be adjustable in the lab. It sure makes things easier in the field, but simply being able to tie quick-release ("slippery") knots will do you just fine at home as long as you have a long enough piece of line. Tie one end normally around the suspension at the whipping end, then tie the other end in a slippery knot with quite a bit of extra length on it (like a foot or three, or, honestly, just leave the roll uncut on that end). You can then play with it to your heart's content and then tie a permanent knot and cut the excess. Just a thought...
Hope it helps!
Bookmarks