I don't think you are thinking about the subfamilies correctly.  The workers
have some
"super sisters" ( same drone dad who's mom was also your mom ), true sisters
with same
mom and dad and there may be as many as 10-20 other groupings called
subfamilies based
on the genetic source with the workers having the same mom but different
dads. (Some dads
may be related and some not as well).  We heard of research speculation
there may even be
competition in the hive for which subfamilies eggs get choosen to be the new
queen.  I leave
it up to smarted people than myself (like George) to explain how they would
know.

Just reporting, not explaining .. Dave

>leave with the "old" queen, since there has not been time for
>the progeny of the "new" queen to be anything but a tiny
>percentage of the total population, at most.