I'm so glad to hear that you worked it out and that the nights are progressing, for the most part.
About how long does she whimper before crying out loud at the random 2 hr wakes. For us, the 6 month growth spurt did hit hard and he bf more frequently during the day AND woke more times at night. I know you don't want to undo your progress, but if she starts crying quickly and up at random times AND if you offer her a feed she latches quickly and drinks heartily, it's the growth spurt. It may or may not land you back at square one, but most likely if she's making progress now she can get to independent sleep quickly.
Here is a link to when to stop feeding:When can I stop feeding at night?
And here's one for the routine changing around 6 months:All about the 3-2 transition- 5/6 months
It's tricky for you because I would say to up her oz. during the day, but I know she is refusing the bottle and you are away. If that's the case and it's out of our control, then please feed your baby at night. IS (ind. sleep) is not worth letting her go hungry when she needs it. They certainly grow SO fast and in and out of phases before you can blink. And no matter what we *think* it is, we can't ever truly know. If only they could tell us, right?
As for the A times during the day... I think if your plan is working right now, keep it until her 2 hr wakes at night subside for 2-3 days (when GS usually subside). But if she doesn't drink heartily at night and she's still waking every 2 hrs, definitely start pushing the A times toward Becj's suggested routine. In my experience, wakes past 4 hrs where they take a long time to fall back asleep (but not usually crying) is indicative of UT... so needing longer A times. Of course UT can manifest differently in babies, so we have to look at the overall picture.
Dropping that last feed and pushing it to the morning at 7 will depend on a few things... your DD's developmental rate, caloric need, day time feedings, and independent sleep- all combined! From what I noticed, most babies past 6 months do this on their own and gradually... as their sleep cycles consolidate and solid food is introduced. Parents wait a little before going in and notice their lo slept a littler later than usual. You can try weaning the amount, keeping environment ideal for sleep (as the 4-6am hrs are really light sleep), and any developmentally appropriate sleep support... pd/sleepy cue/hand on back + GW, etc....
Whatever it is, we'll be here to help brainstorm with you. =)