The load may be opposite the hammock.
But, visible marks and some abrasion will be on the sides of the tree and where the line is just tangent to the tree, rubbing on the bark as the hammock barely moves during the night. The adhesion of a loaded strap is great enough that the movement is within the strap. But cord is less adhesive and slides on the tree.
That's not theoretical. I've observed it. A big deal? Not for me to argue. Preventable? Easily, with a couple of found sticks or a few grams of a hard, thin, slick plastic stick between the tree and cord.
Last edited by DemostiX; 03-19-2012 at 11:33..