Ridgeline

[ErickSaint]

Basically you are making a loop around both trees with the tarp as part of the loop, attempt as an ascii picture:
____________________________
/
(____###############______)

The # is the tarp, so the loop can just be shifted. I normally put light tension on it before getting it into final position, then tension it up when it's in a good spot. This keeps the abrasion on the tree to a minimum since the lash-it will be moving around the tree when shifting position. I actually have added a section of about 18" of gutted paracord on each end that protects the tree. The Zing-it goes through the gutted paracord so when shifting it doesn't cut into the tree.

Gotcha. At least I think I do. When I get it outside between some trees I'll see if I duplicate what I think you have done. I like that idea better than the one I was using here in the house.

Finally starting to see some randomly warmer weather, bringing in some snow melt. Hopefully that means we're turning the corner away from the polar vortex.

[doogie]

This is the basic idea from Dejoha

[SnrMoment]

The 1/8 inch line from tree to tree & prussiks for the tarp connections works great. Used that for a couple of years before I became a splicing addict and made some out of 2.2 Lash-It.