Hi! Iread the older threads when I see somebody posting :)
"3) in MoI, as WJ tells the story of the BB in Raraku, one of the mages/persons QB 'assimilates' is "Ullan, the Soletaken priestess of Soliel." So, maybe this ability has switched over to QB too, given that is a magic-related one? "
Interesting. Fits in with my theory that QB's Soletaken form is that of a Snake (snakes are connected with medicine in logos here in NL; not sure if that's international though).
Anyway, move on in rereading. At some point you will find Erikson himself responding to questions. :)