I was looking at that middle chunk today, not the Bili books this time. The lists I checked put The Savage Mountains as #5, The Patrimony as #6, and Horseclans Odyssey as #7, all right around 1980-81.
That is kind of the spot where I forget the order if I have not reread em in a while. The titles dont help me much either, since The Patrimony sounds like it could fit in a couple places. Does anybody else remember this stretch better than the early three, or do you gotta check the list too?