My baby FINALLY took a bottle at daycare BUT it was with formula. So, we've decided if she keeps taking formula bottles there we will continue with that but now I'm diving into the world of formula again. Daycare fed her the Similac for Supplementation that I had in the diaper bag for emergencies and she took it like a champ so I bought that brand. But my question is if we decide to go exclusively to FF, can she still use the supplementation kind or do we need to find the "regular" one she likes? She's so temperamental with the bottle I don't want to mess her up by switching brands on her!