I've scoured all of the PP faction books, and they always say "shade using _____ color..."
The colors are obviously thinned to a certain consistency - they have a gradual gradient, not just solid stark lines. The question is, how much do you think them? A wash consistency (4 parts mix med, 3 parts water, 1 part paint)? What I was doing was approx 1 part paint to 8 parts water and doing extremely thin layers, but I grew tired of spending 10 hours to paint one section of armor I'm specifically referencing warjacks - such as around rivets, as the light goes down into shadowy areas, etc (in between muscles on an arm, for example, aren't hard to figure out). Thanks guys!