If one considers only the material value, the Ladyshave is crassly overstrained. In the application, but he shows his strengths Connect the vacuum cleaner hose (I had my extended with a second hose from the bulky waste with adhesive tape) and off you go, all the antifouling dust disappears in the vacuum cleaner, the force required when scratching is moderate. The only problem with scratching If you remove the antifouling complete with all primer layers down to the gelcoat, leaving the corners of the sharp scraper almost inevitably fine grooves in the gelcoat. The last layer should therefore be better sanded, or decide Is no preference, is anyway over-primed.