I don't think anyone is having a go at you hon, you asked for advice and people are telling you what they did. Fuller for longer? Are you giving solids to help him sleep through?
I think if you are going to give solids, you should give formula first. Formula has a lot more nutrition in it than solids at this stage and you don't want him filling up and not taking milk. Also, maybe think about vegies? Rice cereal is really just bulk with not very many nutrients. Think about it, if you ate a bowl of plain rice for dinner you would be full but it wouldn't be much good for you. Does that make sense?
Also, I hadn't heard the litre of milk thing either. I think it's 150mls of formula per kilo per day? (someone correct me if I have that wrong) It might even be 180 per kilo at this age. And that's very general, my dd never took anywhere near that and a friends baby took almost double for a while.
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