Simply start at the front cross bar and pull the rope tight as you move down the tramp to the stern then do the same for the 2 pieces in the rear. I have used my main sheet blocks before as well, I ran then around the middle around the sidebars and put a slight bow in them, tightened the tramp and when I release the tension with the blocks I had a super tight tramp! Be careful doing it this was you do not want to bow them in to much or something might break!
Authorized Hobie/Vanguard Dealer
Hobie Division 15 Chairman
Panama City Beach, FL