well say shes hypo and she mated with a normal male wouldnt that mean that they are all het for hypo and none would show the gene right? unless she mated with a het hypo male right? then half would be hypo which could be the case here if you said 2/5 are starting to get lighter and are you going to breed together whatever you can of this litter? i hope that some or all have some form of the gene, then we would be closer to a super hypo