I don't know why I never noticed...

Everyone is complaining about different vinyl colors, especially BB's grey vinyl... never notice vinyl changes, like in the beginning with their pink vinyl. My babies always come out fine and I rarely ever do neutralizing washes. I've only done it once on a yellow-y kit from another company. I never fight the natural color. I always design a color palette to work with it. I guess it just all has to do really with the individual artist, of course.