I just noticed a color in both Maxo and Mixo called Classic Neon Pink that I don't remember. I wonder if that has anything to do with this?
It seems to me that a Union rep told me a few years ago that with the fluorescents, Mixo and Maxo were actually the same and one can save a little scratch ordering Maxo for mixing. If the color is changing, that sure throws that plan out the window.