Could your fast-action fly rod use a little extra punch? The Scientific Anglers Frequency Boost Fly Line is a premium-performance, budget-conscious floating line designed to take the struggle out of casting. Built a half-size heavier than standard industry tapers, this general-purpose line loads modern graphite fly rods quickly and gives you the extra power needed to handle heavy wind and bulky flies.
Whether you're casting small poppers for panfish on a 3-weight or punching massive bass bugs through the breeze on an 8-weight, the Frequency Boost provides smooth shootability and exceptional line control.
Key Features
- Half-size heavy and more powerful than the Trout taper
- Better with larger, heavier flies
- Supple and easy to use
- Versatile mid-length head
- Braided multifilament core
- SA FR BST WF X F (X = line weight)
- Fly Line size 3 - 8
- Weight Forward Floating Fly Line
- 85'
- Willow Color
- Made in the USA
Specifications & Line Weight Application Guide (Sizes 3–8)
Use this technical breakdown to find the perfect weight-forward (WF) line for your local waters:
| Line Size | Head Length | Total Length | Grain Weight (First 30') | Target Species & Tactics |
| WF-3-F | 32.0' / 9,8m | 85.0' / 25,9m | 110 gr | Small stream panfish, bluegill poppers, and light trout dry flies. |
| WF-4-F | 36.0' / 11,0m | 85.0' / 25,9m | 130 gr | Small river trout, mountain brookies, and double-dry rigs. |
| WF-5-F | 36.0' / 11,0m | 85.0' / 25,9m | 150 gr | Ultimate all-around trout line; excellent for indicator rigs and wind. |
| WF-6-F | 36.0' / 11,0m | 85.0' / 25,9m | 175 gr | Large river trout, light smallmouth bass, and medium streamers. |
| WF-7-F | 40.0' / 12,2m | 85.0' / 25,9m | 200 gr | Mainstream smallmouth bass, heavy nymphing, and large poppers. |
| WF-8-F | 40.0' / 12,2m | 85.0' / 25,9m | 225 gr | Big bass bugs, heavy articulating streamers, and light saltwater targets. |