I don't follow those guidelines either. My son usually does end up eating the "right" amount but I don't stress about. He knows when he is hungry and when he isn't.
I was trying to follow those guidelines for a while especially when he was just born because he lost a pound the week he was born. But now he is perfectly healthy and going by those guidelines I felt like he was drinking too much and spitting up.
Re: Baby's weight as feeding guide