Okay, I need feedback. I have a colony of line bred snows are all visually A and high B and wondered if I add a blizzard would that help create a nicer snow or not?
No, it probably wouldn't create a white Snow. Blizzards have their coloring because of the recessive genes behind it. Blizzard would be dominant over the selective breeding in Snows.
You'll get Snows with more white if you selectively breed them, keeping back the best offspring and then breeding them back together.