The dropper knot is very reliable and quite effective because of the way it is tied. It offers a great advantage and ensures that it holds well and lasts long. When tied correctly, the Dropper Loop is a firm knot. in fact, most anglers refer to it as the hundred percent knot. It is stronger than the prevalent knots you use to attach your three-way swivel. You can also use the drop loop to multi-test different fly patterns and not just one fly pattern.