i have a 1996 27ft. gradt white sailfish.the boat was in new york and bottom was painted with ablative bottom paint. i now have the boat in florida on a boat lift,the only time the bottom is in the water[gulf of mexico]is when ni am using it,otherwise it is on lift.the bottom paint is missing on various parts of the bottom[ablative wore off].my question is; should i do something to protect the exposed parts of the bottom,i believe it is the original gelcoat from the factory and that the wax was taken off to apply the ablative bottom paint.if so can i just repaint the bottom with "hard" bottom paint so i dont have to remove all paint and rewax entire bottom? i think the hard bottom paint would protect the bottom gelcoat and would not have to be redone as it doesnt wear off? any thoughts? thanks