Thought I'd update. . . still going, just AM and PM, now for almost 2 weeks. Seems fine!
With the exception of a Saturday short nap when she woke up crying and drowsy. I brought a cup of milk, as she's been having with the Nanny, and she took it for a minute, pushed it away, and said "MILK! MILK!" (it sounds oddly like a combination of MILK and BOOK, I have a hard time distinguishing these two words!); I tried a book, that didn't help; tried the cup again, that didn't help, and she said "MILK! MILK!" and pulled at my shirt like she was about to tear it off. Whoa! I guess I figured out what she wanted.