When I make 8oz bottle with the Parents Choice Formula, there is way to much formula and some of it falls out of the bottle while I am trying to prepair the formula. When I make a bottle with the Similac that I started out with, it fits in perfect! It does seem that the Similac does mix better then the Parents Choice formula and also the consistancy of the powder is a noticiably diffrent. Makes me wonder if they are really compairable? I also had a girlfriend tell me her DR told her not to use the parents choice formula! Before you switch I would definaitly check with your DR first! :) But if they...