Sorry Pete, I didn't check your link before posting, part of my age challenge, :-)
Aeroclub makes a spandex thread on the same order, works good, although it's white, you can color it by stretching it, and color with a permanent marker. If you are using it on a tall mast to tail, I suggest replacing the mast with a brass or piano wire rod, embedded firmly into a drilled hole, as the plastic mast will snap over time. If it firmly attached on both ends you can pick the model up with it, and not snap it.
Hope that helps.
Character is what you do when no one is looking.
Few things are harder to put up with than a good example.- Mark Twain
Make yourself an honest man, and then you may be sure that there is one less scoundrel in the world.--Thomas Carlyle