are these the ones that produced bumblebee and the other pastels? I have had similar experiences with certain groups of checkereds and and I split mine up so that the ones that I have now are all unrelated. I think that the albino checkered line is so heavily inbred that this is becoming too common of an occurrence. The marcianus currently in captivity really need some fresh genes injected. They are supposed to have large, robust, thriving litters and lately, we are seeing more and more of them having just a couple babies. It does look like my amel female is gravid, she is quite a robust snakes, we will see how that goes! I have a lot of friends at the local shows who many of them have a few checkereds, and even from them I am getting reports that the clutches are small. I just know it's from the albinos not being outcrossed. People buy a pair of babies because they are cheap, then grow them up and breed them like rabbits, and the process just keeps getting repeated.