Yes, the idea works. I use bright orange thread wrapped around the string, and I line up the orange spot with the riser where the lower part of the pin guard appears to "touch" the riser. IMO, it works better in low light than it does in brighter light. I can see my target better rather than having the target (a deer) so dark that it seems invisible comparet to a bright fiber optic pin. I don't think you get quite the "nock splitting" accuracy with it, but you can certainly shoot 3" groups at 30 yards without having to worry about target blackout or losing sight of your pin in low light through the peep. I did experiment with a No Peep this summer, and the string wrap gave me equal or near equal accuracy without all of the setup hassles. I did notice on Saturday that the orange gets dark when it is raining and the thread gets wet.