I think she could make it to at least 7:30am without a feed. Today she woke at 6:30am (bedtime at 7:30p) and we just got her up and did not feed her until 7:15am. She just got her first tooth popping out, but her fussy phase is finally over so she is not too bad from that But much more alert and trying to crawl... Maybe try W2S?
She used to take longer naps, like 2 hours, after a short nap and a shorter A time. Seems like now she is splitting the sleep better. She usually gets around 2.5 hours, so still not enough daytime sleep.
Maybe wake her at 3 or 4am for a feed? though I hate starting a new feed when she never took the DF