Scientific Anglers Mastery Trout Standard Fly Line · WF · 4 wt · Floating · Optic Green - Green
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- Returnable
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The Scientific Anglers Mastery Trout Standard Fly Line is built for freshwater trout fly fishers. Built with a revised compound taper, this line is designed to delicately deliver dry flies and fish smaller nymph rigs and streamers. A braided multifilament core helps reduce line tangles. Treated with Advanced Shooting Technology, the line coating has low friction to enable longer casts.
Key Features
- Line Identification – The line is marked within the first two feet of the tip for easy line identification.
- Welded Loop Ends – The welded loop ends make connecting the line to backing and leader easy with a loop-to-loop knot.
- Increased Size – To better help modern fast action fly rods load easier, this line is made a half a size larger.

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SA Mastery Trout line is a weight forward floating line optimized for fly presentation toward trout. This is a top tier line, and you will be able to tell a difference after casting with several types/quality ranges. A lot of the engineering here is in the core and taper. Scientific Anglers seemed to have perfected this in the way that the two combine at the end of your cast to make for an elegant turn over and presentation. It is particular nice for dries, where presentation is key.

This line is money for med-long casts with dries or light nymphs/streamers. Great for spooky fish. Very versatile trout taper to use worldwide.

Great general-purpose line for rivers and lakes. Good for casting feel, distance, accuracy, and presentations.

Great all around fly line! Mends and is easy to cast. Good for dry fly, nymphs, and streamers.

Floating line, pairs well with 3 WT reel. A go-to for trout fishing, smooth casting, and mending.