I have a catalina 27 with roller furling jib. I think it's a Harken but not sure. When I pull the sail out it comes out really easy. But when I try to roll it back IN it goes for a spin or two then stops. If I let the sail back out a half spin then I can get another 2 spins to roll the sail IN. I basically have the sheet in one hand and the furling line in the other going back and forth with the two lines. Two spins in with the furling line, then a half spin out with the jib sheet, then 2 spins in with the furler line, etc. This works but obviously something is not right. Based on the internet this sounds like halyard wrap. If this is the case the first step would be to make sure there is proper tension on the halyard? The PO put the jib up for me so I have no experience how tight the jib halyard should be. Can I just kind of guess with the halyard tension?