The non-slip loop knot has been helping anglers stay connected to fish for decades. This knot is ideal when trying to add some extra movement to your fly as the loop allows the fly to swing more freely in the water. Often when I see knot diagrams it shows a good breakdown of this relatively simple knot to tie, one thing I wanted to point out however is that the number of turns you do when creating this knot matters greatly. The controlling factor in deciding the number of turns is the thickness of the line. If you do too few turns with a thinner diameter line, there might not be enough friction to keep the knot for slipping. If you do too many turns with thicker line, the knot might not be able to cinch down all the way or set correctly. The diagram above from 101knots.com shows how to correctly tie the non-slip loop knot, I would recommend considering the following changes to the number of twists based on the strength of your line.
- Lighter than 10 pound test = 6 turns
- 12 pound test = 5 turns
- 15-30 pound test = 4 turns
- 30-60 pound test = 3 turns
- Greater than 60 pound test = 2 turns
- Wire = 1 or 2 turns
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