The bottom is basically a 30 Excalibur, since that was the origin of the boat. The early Fountains were built on par with the Cigarettes of the time- quality materials and laid up heavy. Like all performance boats of that age, you need to look at tabbing delamination, striger separation loose bulkheads, cracking at the strakes and fuel tank failures. This isn't unique to this boat- all 25+ year old offshores see these sorts of issues- the more they're used, the harder they were used, the more likely the issue. Like all quality boats of this vintage, they'll take 50 to 75% more power to push to equivalent speed as compared to today's boats. But they ride nice and stable. If you want to drag race on flat water with an '08 35 Fountain with 525's in it, you'll probably need to have 850 blower motors to keep up. But in 6's, you can walk away at will.