You can bounce all of those. If you have some reason to think your dog might not like all that bouncing then don't but I fed grain and grain free and lots of people feed raw and kibble in the same meal with no complications. The old story about kibble and raw being digested at different rates is in dispute and there's no logical/proven/scientific study/reason to say it's harmful even if they do digest at different rates. I also fed homecooked and raw in the same meal and in the day when we moved from homecooked to raw.