Abby's PT at school took a good look at her gait with no shoes on and determined that she is not pronating. This is wonderful news because it means no expensive, annoying braces this year. The bad news is that she did see more instability without her shoes for unknown causes. She is going to do a few more sessions without her shoes on and see what she can uncover.
It is such a pain because we can't force her to wear her shoes all the time but I hate for her to fall even more than she already does. We're just going to keep an eye on her for a while and see what happens before we start pursuing it further.