Has anyone had any experience with any of the products that claim to restore fading vinyl? I know Flood makes one. They dont have a good rep in this business though. I have a customer who wants his house washed and asked if I could restore his shutters. I think these vinyl restoration products are just cleaners and wax. I was thinking about just power washing the shutters and then applying a slightly stronger concentration of my house wax. What do you guys think?