Those of us who tie flies have dealt with the challenges of uncooperative thread, and it’s possible that many of us don’t even know that “we’re doing it wrong.” In the video below, Tim Flagler shows us how to cord and uncord tying thread for various situations.
Corded thread—or twisted thread—is smaller in diameter and stronger. Uncorded thread is flat. There are uses for both. If you’re a novice or frequent tier, this tip can help you with a lot of little things, like properly tying in various materials, or building the thread body you need for certain flies. After you watch this video, you may never look at your tying thread the same way again.
— Chris Hunt