As far as bag size and rotation goes, that is a personal choice. I always buy the big bag to save money and I have 3 dogs so I go throught it quickly. After you have transitioned a few times you will find that your dog no longer needs transitions so you don’t have to worry about having enough food for a transition. I know several people buy the small bags so they can switch more frequently. Once your dog is used to switching it really doesn’t matter, you can even do like I did last winter and have four bags open at once and feed something different every meal. And yes, you can feed a cheaper food one time knowing you are going to feed a more expensive food next. You can feed chicken one bag and lamb the next.
