Scientific Anglers Mastery Standard Trout Freshwater Fly Line Size:WF-4-F Thunderhead Submersible Sling (not recommended

Thunderhead Submersible Sling (not recommended for right-hand casters)

Trusted by experienced anglers

After about a twenty year absence from the market

plus allows you to retrieve your fly without damage

Great for Accents / Hot Spots / Triggers

Scientific Anglers Mastery Standard Trout Freshwater Fly Line Size:WF-4-F Thunderhead Submersible Sling (not recommendedMASTERY STANDARD AFFTA STANDARD WEIGHT, MID LENGTH HEAD Mastery Standard is a true to AFFTA line weight casters fly line. Built with a mid length head for exceptional mending and accuracy at long distances. If you love casting this will quickly become one of your new favorites. True to line weight Mid length head for exceptional mending and accuracy at distance The casters fishing line Braided multifilament core For use in moderate and cold climates