Hmmm, I have always switched from white straight to another color.
BUT, when going from- a) color to color, or b) color to white..
I have always gone – color > water > color(or white) , under the theory that the two colors will contaminate each other.
Thus making wasted paint (or funky colored lines) until color #2 pushes out color#1(….or, white).
Maybe I’ll just have to give ignoring that theory a go!
Good stuff.
