Welcome to the Moms Panel Andrea!
Wow! It certainly sounds like you have a princess filled morning planned! I think you've done an excellent job of planning out your morning. Since both
Cinderella's Royal Table (CRT) and the Magic Kingdom location of
Bibbidi Bobbidi Boutique (BBB) are both in Cinderella Castle, you should have plenty of time to enjoy your breakfast and then go downstairs to make your 11:10 a.m. BBB reservation.
I would make sure that I arrive at Cinderella's Royal Table at least 15 minutes ahead of your reservation time to check-in. You can even mention to the hostess that you have an 11:10 a.m. reservation at BBB. Perhaps you'll get lucky and be seated a few minutes early.
Princesses actually do a great job of making their rounds in a timely manner but still spending quality time at each table. Guess its just part of the Disney magic. If you see that you're running out of time and still have a princess that hasn't come to your table, speak with a Cast Member and explain the situation. They maybe able to help you get them over to you.
Keep up the great planning and please let us know if you have any other questions. We're honored to assist you!
Wishing your daughter minnie magical princess filled memories :-) Allison