NEW TwinPower has super slow oscillation system, and spool goes up and down only 1/4 of previous models. Closely laid lines will smoothly leave spool in casting.
4000-8000 models of HG (high geared) and PG (power geared) are comparable to the line of Stella SW reels, with a few less number of ball bearings. They have improved saltwater-corrosion resistance, and are installed with anti-rust ball bearings to be used with saltwater severely. Drag washers are made of carbon for real fight. Spare spool is sold separately.