In the same boat, mine has 6oz too and he can cry literally an hour after a feed!!
My 13 week old is the same! She used to go 3-4h between feeds but is now going 2-2.5 instead. She’s been sleeping 7:30-6:30 for a few weeks so I think she’s just cramming all her milk feeds into the day time rather than at night.
I’m in the exact same predicament, down to a tee! Not quite sure what to do.