SA Amplitude Smooth Grand Slam Tropical Floating Line
Tarpon. Bonefish. Permit. All in one day. All on one fly line. That’s the idea behind the SA Amplitude Smooth Grand Slam, a line designed specifically to help you achieve one of angling’s most elusive accomplishments. With a short, powerful head the Grand Slam cuts through wind and turns over crabs, shrimp, and tarpon toads with ease. We’ve got the line. You just need the fish.
The Amplitude Smooth series of lines are, simply put, the highest-performance smooth fly lines in the world. With up to five times less drag and eight times the durability of traditional lines, this will change the way you look at fly line performance.
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
| Specification | Value |
|---|---|
| Line Type | Floating |
| Weight | 100g |
| Length | 120m |
| Material | High-density polymer with AST Plus additive |
FAQ
What makes the AST Plus additive different from traditional fly line materials?
The AST Plus additive improves shooting performance and increases durability by reducing friction and enhancing surface smoothness, allowing for better line control and longer lifespan.
Is this line suitable for both freshwater and saltwater fishing?
This line is specifically designed for tropical saltwater environments and performs best in saltwater conditions such as tarpon, bonefish, and permit fishing.
How does the short, powerful head improve fishing performance?
The short, powerful head allows for quicker response and better wind resistance, enabling the line to cut through waves and maintain stability during casting.



Nathan Paterson –
Used this line for bonefish and tarpon in the Florida keys. The casting performance is smooth and the line holds up well in strong winds. No tangles, and it stays true even in choppy conditions. Great for long days on the water.
Colin Quinn –
Felt a noticeable difference in drag compared to my old line. The AST Plus additive makes it easier to cast and the line doesn’t snag on rocks or weeds. Still learning the best techniques, but already seeing better results.
Andrew Gray –
Perfect for tropical saltwater fishing. The floating action is stable and the line doesn’t kink easily. I’ve used it for multiple days in the mangroves and it performed consistently.