Most of our windows are Vinyl, so we are only dealing with the casings. With wood windows we remove the openers.Boden
Spraying sashes doesnt work, particularly on double hungs. You end up with a line at the bottom of the lower sash because the window is closed and the bottom of the sash is obscured. For base and shoe, prefinish them with primer and a coat, then fill the holes and brush them out final coat.