well i`m rebuilding another Tracker ,,this one a Pro 18 and alllll the floatation is just water logged, so I`m taking it out and leaving it out. It`ll still have the floatation in the sides, bow and in the rear on both sides. It`ll still keep the boat afloat I beleive. But I bet I removed alest 3-4oo lbs of water logged foam. So it`ll float alittle higher and run alittle faster..lol