Hello, I have a 28 ft O'Day. I am perplexed about the roller furler? I have had to roll the genoa with the windless, because the roller furler is so hard to pull in. When I checked everything I realised the hub is almost impossible to turn by hand. There are set screws of some kind behind the take up line on the black plastic hub...What are my bearing options? Does the unit have to go back to Pro Furl? Thanks for your information. I have a brand new Neil Pryde sail on the unit and have checked everything else. Took the sail off, laid on deck and tried to manually turn the hub, and it is real stiff?