That does make better sense. A retrogression of color rather than a progression. Now that I think of it, the less ribbon colors there are, the weaker the ribbons seem to be. From my observations anyway. Also. I've always believed that peltier started out most marble types opaque in color (Non-fruit cocktail types) and as color ran out then you start getting the translucent bases and eventually to a near clear based marble in the end.