Done!!! The model was weathered using Mig Washes and Pigments. One method I like to use to add pigment, is to mix the pigment with a little water, making a paste. I then apply this paste using a soft brush where I need it. When dry you can use a stiffer brush to start taking some off. By leaving some on, it looks more like caked on mud. After all the weathering, it was given a final coat of Testor Flat Clear spray.