I must be missing something, but I just don't get the idea of why you would use these cleats. It seems like you're doing exactly the same thing as the regular hammock lashing but with the extra element of the cleat thrown in. That's rather gilding the lily as far as I'm concerned. The lashing is so simple (at least to me) and slip-proof in the first place I just don't see why you'd mess with it if that's how your hammock was built (as my HH was.)
Yep, I know where you are coming from. I've gotten pretty good, quick and efficient with it over the last 11 months. I've often wondered if this or ring buckles would be worth the expense, weight and effort. But curiosity and word of mouth and lack of total satisfaction with the HH lashing made me decide to see what other options might ( or might not ) work better. This search started after I first got my HH, spent a week in the Rockies last Sept immediately after buying it, and learning as I went. Then I soon got a Speer and immediately realized that the webbing and 4 wrap Speer knot seemed much easier and faster than HH rope thru the huggers.
It's not that there's not room for improvement.
Well, that's really the whole idea, right there. There is really nothing at all wrong with the basic HH huggers and lashing. And the Speer knot is at least as good and maybe better. They are more than sufficient, but there might be something quicker and simpler. Also, speed seems to be a factor for me if you consider re-adjustments. Whether you need to tighten more, or raise/lower one end ( or maybe both) of the hammock, or make the hammock more centered between the trees, undoing the HH knot and redoing it can become a bit of a pain.
There is another situation I have found in the field ( varies greatly with where you hang and types of trees): often the trees I have had to tie to have limbs of some type at about chest level or lower, sticking out 1 or 2 or 3+ feet from the tree. If the tree is thick enough that the hugger loops are going to be close to the tree, so that you are having to lean in past limbs and leaves, trying to tie the lashing, while trying to keep the hugger from falling while you thread the rope thru the loops and apply enough tension to keep it from falling, all while trying not to get poked in the eye by one of the limbs- well, it can sometimes become quite a pain in the behind ( or in the eye!
So, something ( anything ) that can be tightened up AND taken down ( for re-adjustment) faster, and while allowing you to stand back from the tree if needed, seems attractive to me. Especially if it doesn't weigh too much, cost much or add complexity.
And I can testify that these cleats are quite speedy and easy for applying tension compared to lashing at the tree hugger loops, and very convenient to undo just enough to make an adjustment, whether right next to the tree or standing back a bit. I'll know in a few days if a piece of webbing around the tree, thru a loop or biner, and back to a buckle near the hammock, will be as fast or maybe even faster/easier. And I suspect the hitchcraft devices will prove very handy, also, if I ever get a chance to try them. Now, is all of this speedier approach worth an extra ounce or so, an extra device and a small bit of money? I'm not sure yet. Certainly the majority using the ring/buckles don't seem to be planning on going back to HH lashing. And TeeDee and a couple of others seem quite pleased with the convenience factor the cleat offers. I'm still deciding!