Nope, I think I am wrong about those knots being the same, and I see where I was confused. Though they tie in a very similar fashion
, both involving a bight through a loop. On the MSH, the bight that goes under and through the overhand loop, is formed in the standing line on the tree side. I'm not sure whether this would function as a slippery truckers hitch or not, but I was having some difficulty with it.
But when I tied it in my normal fashion ( webbing was making everything harder, I am used to rope with these knots), I formed the overhand loop with a "twist", then made the bight on the "working" end- or the end farther from the tree- and slipped that bight back through the 1st loop. Then of course working end around tarp stake or whatever, and back through that bight and tighten up.
So, very similar to tie but bight formed on opposite sides of the 1st loop. I'm not yet sure if each would function for the other, but when I start practising in the woods I am going to try and tie the MSH exactly per these instructions.