I was thinking of doing this on my current project. For the main reason that the gloss darkened the base coat, so it’s hard to tell how dark I am making the wash relative to the underlying base. I would like to apply my flat then do the wash.
Two questions. 1) what are you using for your flat? I assume it is something acrylic and not dull cote or else the wash would interact with it. 2) does the flat coat remove the staining issue? Previously I’ve been nervous about doing the wash over the flat clear as I too have had staining issues on flat base coats with oils