it's one thing for a vet to sell SD out of ignorance but it sounds like the vets u talk to are just a-holes.Wow. This sounds alot to me like the pot calling the kettle black type ordeal. Everything I've ever been told/read/researched and told by a few vets is that the things i think are "crap" in kibble, ARE. And vets have told me they get a percentage to reccomend those foods, and alot of people fall for it and thats why they push it. I was also told that the segment of "nutrition" they get in school is basicly a siminar about why to push this food more than what should be in it. I would ignore it and stick with the acana/orjin. Maybe try mixing the food with the old food until your pup is adjusted well? Good luck.