Our dd (almost 10 mos old) drinks formula from her bottle well. She also drinks water from her sippy cup equally well. However, as we're attempting to start transitioning her from a bottle to a sippy cup, she barely drinks anything from a sippy cup filled with formula. But, as soon as I transfer the formula to a bottle, she guzzles it down ... so, I know she's still hungry. Has anyone else has this experience? Did you just keep trying? Or, did you wait until you transitioned to whole milk? Thanks!