I have allot of Createx opaque colors and a pint of transparent base a quart of 5608 illustration base and a pint of airbrush medium which is colorless paint and I've had great results with this setup, that being said I also have a lot of "specialized colors" that I use such as fastback green, Sepia, fluorescent and pearl colors. I guess to put it simply that I have a little of everything but the base colors will do you no wrong getting started.