I purchased my boat in the very early spring a few years ago, so being proactive I sent the sails to Sail Care Inc. to be cleaned and while there I ask them to put a UV cover on the roller furling genny. The sail seemed heavy when I packaged it to ship out but on the return the sail felt really heavy. The UV cover appears to be the same sunbrella that the mail cover is made from. Unfortunately I never got to sail the boat to see how the genny set origianally. In light to moderate air the sail does not fill properly, when the air is heavy enought to fill the sail, I need to roll part of it up because the boat is over powered. This may be a seperate issue but when hard on the wind, the genny backwinds the main, causing it to buckle. I have purchased a couple of used jibs, all lighter weight and no UV cover and they seem to work well even though they are well worn. Am I all wet or is the UV cover ruined this sail? Can I remove or have the UV cover removed or should I just trade it in on a new sail? By the way this UV covered jib looks and feels almost brand new other than it has lost most of it's stiffness. Sailor with a heavy jib and backwinded main.