The method is pretty straight forward but you do have to be mindful that the pigments will slightly stain and aren't 100% removable due to the "tooth" of the underlying Flat coat and the fact that the pigments, when dissolved in water, become much finer than just as the powder. The water application does have the added bonus of "fixing" the pigments though, no additional treatment or sealer is required.
Appreciate the comments! I always try to explain the "how it got there" vs. the "then a miracle happened" approach...I myself have learned quite a bit from reading the "how" from other modelers, the least I can do is return the favor.
Jeff, Mike, Plasticat, Ethan, Henk, and Scott,
My pleasure and thanks!