Most of us feed a fairly large rotation of foods. You're right, it's best to start off slowly until the kitties get used to it, but being so young, it'll probably be very quick. Mine get the rotation l mentioned above ^ and never get back-to-back same meals. And if/when l can, l give them the choice of 2 different canned/raw at each meal. They usually will eat some of both, but occasionally one cat will choose only the raw or only the canned choice.Thank you for the examples. I think we will stick to the one brand of dry for now until they are one year old, then probably switch to an all wet diet. As for the wet food. That's what I was thinking...one whole can of the same wet food, they Half and half of each then the new food, right? Thank you!