just got off the phone...
...and just got off the phone, all the changes were not an issue. Old EC millage applied, just had to pay the change fee!
One gripe, I could not get HKG-ORD on April 22nd booked. Agent claimed it did not show up as available no matter what. It comes up available on ba.com and kvs...and it let me go through to book it on ba.com (as far as processing payment anyway).
I guess I'll cough up another $140 in change fees for the HKG-ORD leg when/if it magically shows up for phone agents.