The end channel type of attachment is nice and allows for easy deployment as a narrow (54 inch) tarp. Nice! Of course another method requiring no sewing, no glue, no tape- is to tie a knot in each end and attach your support lines with a larks head around the hammock behind the knot. This does take more fabric than an end channel and can't be easily undone. But for those of you without a sewing machine it works great. Cuben does not need to be hemmed, so no sewing required. Besides, if you're a hammock camper, you already are carrying a tarp.
Still, great project.