I'm still not sure about the Hog Island thing, They say it is polygenetic, but then treat it like it's not. So far the boa forum hasn't offered much insight into this.
On the boa forum though someone mentioned the hypos you can't really tell the difference between the hypos and super hypos reliably? If this is true it fits the definition of Dominant more than co-dom/Inc-dom.
Your list of information you could put that hypo and motley appear to sit on the same locus. Also T- albino and caramel-hypo T+ albino appear to sit on their own locus.