heterozygous can be base pastel, mojave, or any normal co-dom trait where it is visual with just one part of the gene there.

Homozygous is when both parts of the gene is there or in the example of a spider the complete gene is either there or not. example would be clown, hypo, pied.

you can have hets of co-doms and receives. with co-doms you can visually see differences in the snake, receives you cannot.

Co-doms are not refered to as het, but rather just the base name like pastel, mojave, lesser, etc but when they are in their super form(homo) we just call it super.

at least that is MY understanding of it.