The Sustain 8000 FE has a Super Stopper II, which uses a one-way bearing to eliminate backplay. This means that you will not have to tangle with the line every time you want to reset your hook. This reel's A-RB bearings are stainless steel ball bearings that have been through the A-RB treatment process, which makes them at least ten times more corrosion resistant than standard stainless steel ball bearings. The Dyna-Balance feature of the Sustain 8000 FE eliminates wobble during the retrieve by counter balancing the rotor to enhance sensitivity and smoothness. This reel is forged with a combination of aluminum and graphite, which ensures a design that is both durable and lightweight. This model differs from the closely related Sustain 6000 FE in that it has a higher line capacity, a higher power pro capacity, and weighs a little less (20.3oz. as opposed to 20.8oz.). The Shimano Sustain 8000 FE spinning reel was created with Shimano's S Concept, which stresses smooth rotation, silent operation of parts, and a solid construction.