Greys Greylon Knotless Tapered Leaders available in 9ft Our copolymer tapered leaders guarantee the best possible presentation. Weve finely tuned the tapers so that you will achieve a perfect turnover even under the most taxing of conditions. The high diameter butt section gives an efficient power transfer allowing the fly to be put down with precision and accuracy. Greylon leaders are memory-free so they lie on the water perfectly and are transparent for maximum stealth in clear water and bright conditions.