MCHN are notorious for getting it wrong.
if BLS is the way you want to go do your research and do it.
i di the pureed thing with DS and the BLS with DD. BLS was sooo much easier. and she has a great appetite now unlike DS who i co-oerce (sp) him in to eating

call the ABA as they have great info on BLS (it doesnt matter if your not breast feeding they are a great help)