I have a 1997 crestliner and have had repeated problems with rotting floor panels.They were replaced by the dealer at no charge. Also,i just replaced the two side panels for the consoles one of which had a soft spot, one where the bottom quarter was falling apart. I keep the boat on a trailer, with a snap on cover. Any idea why i am having so many rot problems. My suspicions are not enough ventilation... the boat is used once a week, fresh water only. the floor has the optional vinyl covering and i always leave the drain plug out when on the trailer. Bob