I too used this Ralph Lauren River Rock paint and had the streaks or shading. (Whatever you want to call it) I was sick!!!!!! After 3 coats and 4 gallons I didn't know what to do. I tried a regular kitchen sponge and dipped it into the paint and sponged on the paint all over the walls where there were lines or streaks. It really helped a lot. You can still see some imperfections but I can live with it now. It really does look pretty in my living room.