Scientific Anglers Amplitude Textured Anadro Fly LineFor Big Rivers and Long Line Nymphing The first series of lines to feature the revolutionary AST PLUS slickness additive, the Amplitude will shoot farther and last longer than any other line on the market. Its slickness down to a science. If youre anything like us, the allure of big fish and big rivers is intoxicating. Thats precisely why Scientific Anglers created the Amplitude Anadro. Designed with line control in mind, its extended rear taper