has anyone carried windsurfers or surfboards on the protege 5 factory racks on a long term basis? any problems breakage bent roof line ect... mazda says the racks are not rated to carry boards due to wind lift the usa roof to my understanding are not as strong as canadas any truth to this i know i can get thules but that is a process of removing factory racks and hunting down filler pieces ect... would hate to see a windsurfer go slamming into the car behind me not to mention the damage it could do to the roof any surfers or windsurfers out there?