The R.L. Winston Boron III Plus (B3 Plus) in a 9-foot, 10-weight configuration is a high-performance, fast-action saltwater powerhouse.
I bought this rod in 2016 for a seven day trip to Christmas island. It was rigged and ready to go but used very seldom. I took it to Christmas island in 2018 and again it was rigged and ready for use but used very seldom. When not in use it’s been in its cloth sleeve and protective metal tube and inside a plastic cover. This rod is like new it has no blemishes and is a sweetheart of a rig. 
Known for its exceptional lifting power and ability to punch through heavy wind, it represents a modern era for Winston, moving beyond their traditional "finesse trout rod" reputation into serious big-game performance.Estimated Market ValueFor a rod in excellent condition with its original tube and sock, expect the following:Used Value: Typically $450 – $650. While a 10-weight is highly capable, it is slightly less common on the secondary market than 8-weights, which can sometimes keep the price on the lower end of the high-end used spectrum.Original Retail: This rod retailed for approximately $895 when it was in production.Condition Factors: "Excellent" condition implies no deep scratches on the blank, clean cork with minimal pitting, and fully functional hardware.Recommended Uses & SpeciesThe 10-weight B3 Plus is designed for heavy-duty applications where you need to deliver large flies and manage powerful fish.Tarpon & Permit: This is a premier choice for "baby" to medium-sized tarpon and is specifically noted as a tactical tool for seasoned permit anglers on the flats.Large Predators: It is excellent for Striped Bass (especially when slinging heavy sinking lines), Snook, and large Redfish.Jungle & Freshwater Giants: The rod's backbone makes it suitable for Peacock Bass, Golden Dorado, and even King Salmon.Line Pairing: It is versatile enough to handle both aggressive shooting heads and traditional saltwater tapers. Expert reviewers often recommend a Rio Tarpon or Permit taper to maximize its high line speed capabilities.Key Performance FeaturesAction: Unlike some "stiff as a board" 10-weights, the B3 Plus maintains a fast action that still lets the caster feel the rod load.Fighting Power: The boron-reinforced butt section provides incredible lifting power, essential for pulling fish away from mangroves or deep structure.Hardware: Features oversized, salt-resistant shooting guides with a high Rockwell hardness rating to minimize friction and increase casting distance.