I have two tahiti jet boats, both are 18 ft. both appear to have the same hull underneath. one is a 1977 the other is a 74 the 77 HAS A REAISED DECK AND I WAS TOLD IT WAS A CHEETA BUT IT HAS A LOT OF STRESS CRACKING ALL OVER AND ON THE SIDES. I THINK ITS BECAUSE THE THICKNESS OF THE HULL IS THINNER. IT MESSURES THINNER THAN THE 74 MODEL. THE 74 MODEL HAS NO STRESS CRACKING AT ALL AND IS ABOUT 1/2 INCH LONGER AND NEEDS PAINT FOR SURE. SO I CANT MAKE UP MY MIND WICH ONE TO BUILD. THEY BOTH ARE JUST BARE HULLS AND NEED FULL LENTH STRINGERS PUT IN.