My DS is now 2.5months old and is formula fed, when he was still in the hospital after being born he was having some "projectile" vomit, so the nurse's mentioned it to the ped the next day and the ped suggested to switch him to soy formula to see what happened, he only had a few more "projectile" vomits after he was started on the soy, and he's been fine since. I've been told that you can try to switch them to reg formula anytime you want ........... So I'm just curious as to if anyone else has done this with their LO?