* Grain weight for the first 30′
SA Amplitude Smooth Trout Expert
If you've ever blamed your fly line for spooking a fish, this is your redemption arc. The Scientific Anglers Amplitude Smooth Trout Expert is built for anglers who take delicate presentations seriously — true-to-grain-weight, buttery smooth, and engineered to land a size 22 Trico like it was never there.
- AST Plus slickness additive — up to 5x less drag, 8x the durability of traditional lines
- Elongated front taper for delicate, precise presentations
- True-to-grain-weight — what it says on the box is what you get
- Excels at medium-to-long distances with dry flies and smaller nymphs
- A dream on glass and bamboo rods
- Braided multifilament core for consistent performance in moderate and cold climates
- Available in WF-2-F through WF-7-F in Leather/Sage Green/Buckskin
For the angler who knows the difference between a good cast and the right one.
TAPER DIAGRAM

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