Delete your rear wiper to smooth the look. Theres a DIY guide on here where you can remove the arm and plug the hole with a rubber grummit or do what i and many others have and get it removed proffesionaly and have it filled and repainted. Have a look at RT Performance on proffesional traders and follow the "our work archived" and you will see "Paycos carbing his body" thread. Theres some photos of my wiper delete from last year.
Have fun