I am going from memory and may be a bit off but I believe the bottom of the sail is attached with a shackle and the top of the sails uses rope, I will see what I can do to verify this for you tomorrow. The line on the top of the jib simply runs thru the timbale at the end of the forestay making several passes from the grommet and the timbale and tying off.
Hobie Division 15 Chairman
Authorized Hobie/Vanguard/Hunter Dealer
Panama City Beach, FL