I just bought a 1977 Hobie 16, my first sailboat. I am almost ready to go just need to run my Jib sheet, It has the 2 jib traveler cars. I only have 3 swivel cam cleats on the front crossbar. It that correct or am I missing another one for the other traveller return line? I am a little confused by the schematics and info I have found on the matter.