I agree on the total lack of information making it tricky.
Somewhere on these boards I commented that RDRs hidden gene and the woma hidden gene were related and someone told me I was totally incorrect on that. I was told that the hidden gene in woma is not related to the BluEL group because the SoulSucker is homozygous for hidden... I wish like nothing else I could find that thread but my searches so far are coming up empty... I'll keep trying