I personally don't refer to codoms as being hets, I concider them visual morphs. I have saw people refer to normals as het spiders or het pastels probally because it was a sibling. If you poll 100 people as to what they think of when they hear het spider I think 95 would picture a normal that would produce spiders. In that case they would respond.....ps..there is no such thing as a het spider.