Even if 90% of Het Clowns have blushed heads and high white sides (which they dont) and 10% of normals have the same traits, the normals with the traits would still outnumber the Het Clowns more than 100:1.
Remember that Clowns are one of the most rare recessives in the wild (according to how many have been collected)
Justin, those are double het albino genetic stripes.