Just purchased this model, have a question about the support cable exiting the rear of the boom. Being a newcomer to sailing I assume that this connects to the vinyl coated cable attached to the mast top to support the rear of the boom. If this is so, I can only pull the cable out about one foot and it stops or jams. I can pull it back in by pulling the rope at the other end (which I assume connects to the cleat under the boom when adjusted properly), but when I try to pull it out again it stops at about one foot, not long enough to make the connection. Should this come out further to make the connection or am I missing a piece of cable or a part to make the connection???? If I am correct and it should come out, what could be wrong??? How can I correct it??? Has anyone else had this problem???Thanks for your help!!!!