calvin, your doing it wrong............
from personal experience if you put a wind flag out that stands out like a sore thumb and looks hideous it will catch everyone's attention and they won't be able to take their eyes off of it, it may not make you shoot any better but it is guaranteed to make the field shoot a lot worse.............
Back to the OP...........do not use surveying ribbon on your flags, it will flutter and give you bogus info, you want nylon ribbon, surveyors ribbon contains wood fiber and is designed to be bio degradable, nylon does not and will not. Your close enough that if you want a roll of nylon PM me............