yeah, but the metolius thing you have ...i think it is only rated about the same as that clove-hitch thingy( i think 600 lbs)... i would use a fixed main anchor point (which would be much stronger), and then use a clove hitch as my adjustable(you could substitute that for a metolius thingy i guess), but i could see where that thing might be a nice thing to have for quick adjustments when you have to use all of the rope and cant spare extra rope, but i guess that dose't happen very often...