Scientific Anglers Mastery MPX
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The SA Mastery MPX taper is our single most recommended SA line for trout anglers who use fast and medium-fast action rods. The MPX is an improved version of the famous GPX taper with more mass toward the front and a longer, more gradual rear taper. Together, these characteristics offer greater loop control, roll casting ability, mending ability and fly-turnover than the GPX. Try one yourself — this is your new favorite all purpose trout line.