Bit more work done on the tankcars, added some Vallejo chipping medium thinned with a bit of water and flow improver to the upper parts of the tanks. After a short drying time I went over with Vallejo base grey 3:1 thinned with airbrush thinner. 15 drops of base grey with 5 drops thinner, and 3 drops flow improver. The flow improver is great stuff, prevents the tip from clogging. Airbrushed a thin layer on the tanks, let it dry for a short time and went over the top with 10 drops base grey, 5 drops white and sprayed the top of the tanks withthis slightly lighter grey color. Finaly a short spray on the edges and seams with a 50/50 mix of base grey and white, to highlight them. Do think this pre shading adds more depht to the model. After the paint is dry, happily wit acrylics it doesn't take that long I started chipping by brushing clear water over the tank. This chipping medium acts like hairspray and parts of the paint come of again and the rust undercoat becomes visible. When I started with the basecoat I forgot to remove the decals, thought it was a unforgiven mistake but in this case I se an advantage. The show a bit rusty through the color coat and I like it..Now it's time to add more chipping with a brush, add a clearcoat and come over with enamel washes and grimes. That's for the net time