Over 18 seasons have always painted the bottom antifouling before dropping in slip. Last 5 years have used ablative paints that are billed as multiseason. This year bought new paint, but have about a half gallon of paint from last year, and am having some back issues. Last few years have gotten my son to paint, but he may not be able to this year. Is it feasible/practical to just paint the spots where the paint is down to the next layer down, which would be a lot easier on the old back, or is this a just kidding myself move? Opinions welcome.