Mick,
Thanks for the advice. Already do all of these things routinely; however, the problem has been getting more severe every time I use the boat. Last two times, when unfurling, the boom would rise as tension on the outhaul line increased with the sail binding in the mast slot. I had to use the boom as a lever and pull it down in successive manner to get the sail out. Didn't really have any problem furling; primarily unfurling. Halyard tension was good also with mainsheet & vang released. Decided to address the issue now, during the winter , while I am not using the boat very much. I really believe the big problem is the sail, with some of the problem related to the furler being gunked up and the furling line creating excess friction. Will reinstall the repaired furler and new line this week. Hope to hear from the sail loft this week, regarding the sail. Thanks for the help.