Quality, quality quality, , , it describes what you can expect from Shimano Japan market reels, and what Shimano Japan cares of the most. Craftsmanship lives more in Shimano Japan reels, and that is the reason serious anglers always seek after Japan Domestic Models JDM.
Please choose 50 and BFS models when you want to cast very light rigs like 2.0g 1/16oz-5g 3/16oz. These "Finesse" bait casters spool very little lines to cast the very light rigs. Otherwise, 100-200 sized models are the best.