Well, my sample didn't do exactly what I'd hoped. My intent is to design yardage from which to make some lace curtains. But even when the piece is backlit, the white weft overpowers the really interesting things happening in the warp.
To de-emphasize the weft, I did a little bit using sewing thread and then with monofilament. Here the warp pairs dancing with each other are really apparent. I notice that it shows a little better when one set of warps is a lighter color. This gives me the idea to try using white as part of the warp instead of in the weft. This will be fodder for the next sample.
But as for the current sample, it will just become a nice scarf.