Scientific Anglers Amplitude Textured Trout GP - Butter/Sage/WillowScientific Anglers Amplitude Textured Trout GP is a high performance floating fly line designed for trout anglers who want easy distance, smooth turnover, and precise presentation. Finished in Butter Sage Willow, this textured line combines advanced slickness with a versatile trout taper that performs well on dry flies, nymphs, wets, and small streamers. Key Features AST Plus Slickness: Scientific Anglers advanced additive reduces friction for longer