Scientific Anglers Amplitude Smooth MPX Fly Line is built a half-size heavy, the Amplitude Smooth MPX taper starts where the GPX left off. Redesigned with more mass toward the front of the head, the MPX provides the same benefits of the GPX, with an added emphasis on presentation. The power is still there, only with an added bit of finesse.
Made a half-size heavy to load fast-action rods, but works well with a variety of rod actions.The Amplitude Smooth MPX Fly Line best for large dry flies, nymphs, and streamers.