We were rocking..........true story here:
Our Larson had wood floors w/ vinyl carpet. The back to back seats were loose and wobbly (lagged in wood "brilliant") and my father worked all day on a Saturday afternoon on the boat and fixed the seats. More than likely he put bigger lag screws in the seat frames. The next day we went to the lake and he backed me and my brother down the ramp(me 10 and brother 14). He went and parked the trailer and my brother took off and started cutting doghnuts at WOT - 45 mph and slung me all over the boat. We broke all seats loose and they would literally fall over if you touched them - haha. My dad got in the boat and when he started to get on plane he punched it and went backwards and about fell in the floor. Oh man he was pissed. "My dumb ass boys" , I'm sure he said!