Keel gaurd took a crap after 15 years. Looks like some pretty thick resin and fiber glass material on the keel. Should I attempt to remove all this down to the original keel before putting on the new one. Probly going to take about 6-10hours to do it carefully. Wondering if I should even attempt it. Wouldn’t want to get into the glass....? Worried about it coming off if I don’t.