Not Necessarily Jack
A friend of mine had a stiff rudder on his Catalinia 27. Each year it got worse. We finally dropped the rudder when the boat was on the hard, cleaned the old black hard grease off the shaft. Used Teflon grease (West marine and BoatUS have it) on the shaft. Other than keeping the water out rudder tube, don't know why we put the grease on. And the rudder after we were done?? moved easily with my pinky.Mark