Wellness Core looks like a good option, and Petco actually carries it, so maybe we'll give that a try for the next bag. $55 for a 26lb bag vs. $42 for a 35lb bag for our current food.

He seemed to throw up a lot when he was little, which is why we ended up with the current food, which is supposed to be good for sensitive stomachs, and it did seem to help with the vomiting issues, which he only has sometimes on long car rides now. This would be my main reason to not switch.