is made of very cheap material. The persistent amount of expansion & contraction of the spring results in fatigue of the material. Heavy use will result in failure of the free spool mechanism usually at the most inopportune time. It is unlikely that Abu Garcia has re-engineered the thumb plunger mechanism to resolve the problem. It is more likely that they are re-cycling an old design to cut costs and then re-packaging it. [Old Wine In A New Bottle] For my part, I will continue to use the 6600 SSc3 reels that have proven themselves sturdy and reliable. I send them off to Mat’s Reel Repair during the off season for cleaning and lubing. This year I am having #5 bearings installed…they make a hell of a difference in reel performance.