just to say my first 8 months with my baby were ruined by my obession with how many or how few ounces of formula she drank. i even gave up breast feeding at 10 weeks because i hate dthe fact that she seemed to be taking in less that 'normal' baboes. my dd never lost weight, despite sometimes only having 2-3 ozs per feed, she is now a healthy 14 month old. can be a PITA to feed (on solids now of course) but thriving, healthy and very active. He genetic makeup obviously mean't that she didn't need as many calories so thrive as some other babies. she now eats about average and enjoys food. she still has milk too.
i was told time and time agin, to just enjoy her, but when i saw babies half her age guzzling double the amount of milk and crying for more, it used to break my heart. i used to stay awake with worry. if she was ill, it was a nightmare, intake was hardly anything and would just keep her hydrated with water untill she accepted milk again.
I tried adding things to the milk for flavour (no avail), all different formula's, timings, positions, cold, milk, warm milk, teats etc.
i agree that ready made went down better and MAM teats fast flow worked a little better too (BTW...i put them on any bottle and they fit)
but on the whole she never had more than 5 ozs per feed till she was 10 months! and i only recall her having more than 25 ozs a day once or twice.
learn from me please. enjoy your baby. the guidelines are just that, guidelines. we all eat different amounts as adults and i think this just shows from early on.
I think I am a real worrier so my experiences won't be the norm, but take from it what you will. good luck