Scientific Anglers Amplitude Smooth Grand Slam Fly Line
14 Reviews

Scientific Anglers Amplitude Smooth Grand Slam Fly Line

Regular price $99.95
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Amplitude Smooth Grand Slam for Bonefish, Permit and Tarpon

The Amplitude Smooth Series adds revolutionary AST Plus slickness to provide increased durability and slickness like a smooth traditional line. The AST Plus is mixed directly into the coating. Each line is built with three colors to identify for quick and easy rigging. SA Amplitude Smooth lines are simply the finest smooth fly lines in the world and are available in a number of freshwater and saltwater specific tapers.


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Customer Reviews
5.0 Based on 15 Reviews
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15
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A
06 March 2025
Anonymous
United States

Better than the others

Used a number of different lines chasing permit. This one is the best.

A
07 March 2024
Anonymous
United States

SA grand slam

Best line!

RR
27 January 2024
ROLAND R.
Australia

Excellent

GREAT SALT WATER LINE

AM
30 May 2023
Alex M.
United States

Nice line.

Excellent for Florida. Slick line.

T
21 May 2023
TS
United States
I recommend this product

Excellent fly line

WF8F- would definitely buy again!

T
21 May 2023
TS
United States
I recommend this product

First saltwater line...

I called the shop and they recommended this line to go with an Orvis Hydros. Excellent all-around line.

JR
14 April 2023
Jeremy R.
United States

SA Grand Slam

SA is my go to fly line for big game saltwater fishing. Highly recommended

TC
04 March 2023
Todd C.
United States
I recommend this product

This shop is great!

Very good. I have used them many times and I will definitely use them again.

RR
08 February 2023
ROLAND R.
Australia
I recommend this product

Very Good

Definitely a nice line

RM
24 September 2022
Rick M.
United States

Love it….Get it!

Fantastic fly line that is a great match for my Thomas & Thomas Zone fly rod and Galvan Torque reel. Loads easily and casts well. Typical SA excellence.

Stillwater Fly Shop Scientific Anglers Amplitude Smooth Grand Slam Fly Line Review
EJ
10 May 2022
E J.
United States

SA Grand Slam Line in 8 wt.

Line performed great in 8 wt. on recent trip to Honduras. Loaded quickly for fast shots in close and made the distance cast several times to pick up that long distance bone.

A
18 February 2022
Anonymous
United States

Would buy again and again!

Excellent fly line for general saltwater applications.

M
21 December 2021
Mandopickr
United States
I recommend this product

Changing to this line brought two 9wts to life

I spoke with Gabe at Stillwater about a TFO Mangrove Coast 9wt, as I was looking for an easier casting 9 wt as compared to a couple of stiff-as-a-board 9wts that I currently use. I mentioned that I wanted a rod that I could feel load on the backcast, and be an easier casting rod overall. We discussed the SA Amplitude Smooth Grand Slam vs a competitor's standard saltwater WF9F line that I currently use on an Echo Boost Blue, and he suggested that I try the SA line. A few days after I received the rod I received the line. After a short lawn casting session with the standard line, I changed reels to the SA Grand Slam. Immediately you could feel a difference in line speed. I was casting 40-60 ft without any effort, and could single haul in excess of 78' (the limit of my lawn). Accuracy was very good at all distances, plus it was much less effort to cast (translated as more fun). Then I put the SA line on my Echo Boost Blue. To keep the line speed up on the standard line on the BB I had to give a "punch" at the end of my false cast. Once I loaded the SA, no such punch was needed. While the standard line was accurate as far as hitting my targets, the SA was just as accurate, and easier to cast longer.. The most noticeable improvement was shooting line with a single haul, which again exceeded the length of my lawn. While the change to the SA wasn't as dramatic on the Boost Blue as the Mangrove Coast, it was still a significant improvement. I realize that lawn casting leaves something to be desired in comparison to on the water. I plan to be redfishing over the next few weeks, and will update the review. In the meantime, I'll be ordering SA Amplitude Smooth Grand Slam for the Echo Boost Blue as well.

22 December 2021

Stillwater Fly Shop

Thank you for the amazing review!

A
30 November 2021
Anonymous
United States
I recommend this product

Scientific Anglers Grand Slam

Will be using the Grand Slam line in Cuba. Fingers crossed

A
13 August 2021
Anonymous
United States
I recommend this product

Great line for G Loomis NRX+

Great line for G. Loomis NRX+