Sorry your post hasn't been answered.
I am not sure about how many oz's as we're breastfeeding and I never really took notice of how much, just offered sides
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. We were feeding every 3-3.5hrs at 4 months and only moved onto 4hrs around 5 months. Could you try adding 10-15mins to your E's until you get to at least 3hrs? This way your LO will take more rather than snacking every 2-2.5hrs?
I just wanted to say from a night wakings point of view, I think she's doing really well and mine at 4 months had anywhere from 0-2 night wakings (around midnight and towards the morning, like 3, 4 or 5am) and I would feed her at both times and put her back to bed. Sometimes she would wake up 3 times at night (mostly during growth spurts) and then go back to 2. I would say if your LO is definitely taking that 2nd feed, then she needs it, if you see what I mean.
You could try not waking her up for a feed and let her sleep until she naturally wakes up... sometimes a DH is counterproductive and they don't necessarily sleep longer, even with the DF
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Oh and the EAS wasn't perfect for us either at 4 months. Mine managed to take a good morning nap (1.5hrs) and the rest of the day was mostly catnaps too and I used to do more A before E was due, which worked out ok for us.