we dropped the DF at 6MO, 'cause my DS was only taking 1oz and it was useless. I had already started moving the time of the DF, (first was at 11pm, then 10:30 for 3 weeks, then 10 for two weeks, then 9:30 one week, and dropped it at this point) and he was taking a lot of solids by then too 'cause i started solids at 4MO