How do you tie your tarp up? In my early hangin' days, I tied the tarp ridgeline close to the tree, but the hammock line and the tarp line kept interfering with each other. A fellow hanger showed me a new way where you wrap the tarp line around the tree and back to the tarp, creating a "V" shape, which allows the hammock to run in the center, unobstructed.
This method can be accomplished with with full ridgelines or end lines. For those who prefer a full ridgeline, you can thread the line through the attach point on the tarp (D-ring, etc.) before looping around the tree to create the "V" shape.
I put together a quick illustration that hopefully demonstrates this technique. Just like there are multiple ways to attach a hammock (e.g., whoopie slings, Dutch clips, webbing, buckles, etc.) there are lots of ways to rig a tarp ridgeline (full ridgeline under/over; end lines; clipped to hammock line; toggles, knots, prusik loops, etc.).
With the "V" method, the hammock can move side-to-side without interfering or colliding with the tarp.