Where I live the water is quite hard so I really never get through a car wash without water spots. I'm looking for a way to be a bit lazy. After I finish drying the car I'd like to start using a finishing wax with a DA so that I can put protection on the car and remove water spots at the same time. My first thought was Meguiar's finishing wax that's part of their DA correction system. I called Meguiar's and asked about that and he said that while it does offer protection it's not the most durable out there. Any recommendations for a finishing wax that offers strong protection and can remove water spots at the same time? Thanks.