The way i understand it, if you have two visual hypos you will have all hypos no matter what. So if you breed a Hypo Mojave to a Hypo Spider (not hets, visuals) you will get:

25% Hypo
25% Hypo Spider
25% Hypo Mojave
25% Hypo Mojave Spider

Now if you breed Het Hypo Mojave to a Het hypo spider, you will get some that will be 66% Het for Hypo, while 33% will be homozygous dominant for hypo and will not carry the recessive allele at all.