Here's a pretty much picture-perfect pitch of my minimalist DIY D.A.R.T. (Dyneema Asym Recom Tarp) over my DIY 11-foot integrated-net hammock in light but steady rain and moderate (10+ MPH) wind.

The hang angle is safely slackened to 26 degrees (confirmed with a clinometer) on each end, and the tarp is settled down within just a couple of inches of the hammock ridge line until the suspension just brushes the tarp with the hammock unloaded, making light contact on the two short edges to cheat the hammock away from the tarp's vulnerable long edges toward the side tie-outs where there is relatively ample protection. The key is the "wingspan" of the tarp; the sides are pitched out with moderate width to stave off oblique precipitation, rather than being pitched down steeply where the cast a smaller rain shadow. The hammock and tarp are pitched high enough off the ground to avoid backsplash and spatter.

With this arrangement (and the hammock tie-outs deployed to stabilize the body whenever its is unloaded), the hammock will stay high and dry underneath the D.A.R.T. through the night.