We too have just 3 bottles, have for a while now. Our feeding routine is:
6 Bfast - toast, cereal mixed with soy yoghurt then bottle
9 Snack - fruit finger food
11 Lunch - vegies/chicken puree and fruit puree then bottle
2 Snack -fruit finger food and an arrowroot
4 Dinner - meat/veg puree then finger food - steamed veg and a small sausage, soy yoghurt
5:45 Bottle
6pm bed
Zara is on soy formula. Her bottle are completely hit and miss, and unpredictable. Some days she take a total of about 600 ml, sometimes it is half that. I have discussed this with the Dr and CHN and because she eats such a wide variety of solids, and lots of them, I was told not to worry. I do make sure she eats 1 adult size soy yoghurt per day though. I cannot find any correlation between her solids intake and bottle intake - sometimes she just wants it, and sometimes she just doesn't.