Thanks for the support! A couple more updates for you. Friday night I only had to get up once to feed her at 2:30.
I didn't have to go in any other times! She woke a few times but settled herself. Last night I did have to go in at 10 and 1 and help her settle, but both times it was quick, then she didn't wake for a feed until 4:45! That's almost a full night without a feed, so she is definitely getting using to not having one. Who knows how long she'll continue to wake, but I feel much better knowing I can settle her easily without a feed now. I do suspect those teeth are starting to cause trouble, yesterday she busted her pm nap (which is very rare) and she woke quite frequently before 1am and was fairly upset. I hope the teeth don't take too long, and don't undo too much of my work!