FYI, the bottom on a Tripper still tends to bounce like crazy and hog. I remember complaining to Old Town about it once, as bouncy bottoms are bad for speed and glide. Their reply was "Yes, some people put a sheet of plywood in the bottom to help hold it down." My reply was "One 70 lb. canoe and one 30 lb. sheet of plywood equals one 100 lb. canoe." On the good side, if there is one, such mushy bottoms tend to resist really deep scratches from running over rocks, as they just flex away from them.