I am new to having work done at a marina. Up till now I did most of the work myself. I just had the marina wet blast the bottom of my Catalina 22 and apply several coats of barrier and top coat.They sandblasted the kiel as well coated it. My question is this. They tell me they did this without removing the Kiel from the boat. I am skeptical as to how well they could get at some areas. Has anyone had experiance with having similar work done?