My 6 month old is now able to eat a good small bowl of solids (approx. 4 tablespoons rice cereal + half jar of baby food) in one feeding. I've been mixing this with his regular formula (6oz), and after the solids, he finishes off the milk. I feel that now that he's able to eat more of the solids that I should reduce his formula and mix the rice cereal with water instead. Does this make any sense?