Hi i'm in the process of finishing an Airfix spitfire PRxix, with a mixture of airbrushed enamel and acrylic . I would like to say that Acrylics were far better due to low odour and drying time , BUT (and its not the first time) im using Humbrol in both mediums the enamel sprayed fine but the acrylic 230 was useless for spraying despite using humbrol acrylic thinner it just turned into a sludgy mess in the nozle of my airbrush, so at the moment i'd go for Humbrol enamels but an-other make Acrylic