Thanks for the info. Essentially, I do follow a prey model ratio of meat/bone/organ, I just happen to grind it and add bit of vegetable. The supplements are, to some degree necessary for one dog's hips and the other dog's GI system. I've certainly tried leaving them out, but the dogs do better when they're included.
The bone issue I've sorted out, it was just a bit of impatience on my part really.
