I really still like the Spectra No-Tangle line the best. Love orange and always just tie knots on my tarp lines so no need to splice.
I've got one made from zing-it. Haven't tried it yet but I'm lookin forward to it!
I always use either techline or zing it, depending on where I've recently ordered. I use a biner on one end, and prussics with micro-biners or the small niteize s-biners to make it easy to set up and adjust the tarp and a small figure nine on a prussic at the end to easily tension the ridgeline. This set up work either above or below the tarp, depending on preference.