Super-fast action BORON III SX rods are capable of generating very high line speeds, and have the strength, reserve power and advanced boron technology needed for demanding, aggressive salt, fresh and warmwater angling situations. Translation: whether you’re making long casts directly into the wind, chucking a 400 grain line or throwing bulky, air-resistant streamers and poppers, a Boron III SX rod will get the job done. These rods are also remarkably lightweight and easy to cast. They can deliver flies with incredible accuracy and have the lifting power and fish-fighting capabilities to handle everything from monster browns to big tarpon. Have at it.