Has anyone used the new version of feline hill's i/d diet? One of my cats has ibd and is on it and hardly touched the old version. But this new formula (actually it only says new texture), he LOVES. It's similar to the eukanuba low residue. He gobbles it up like candy. But since we've gotten it, his vomiting has increased. I wonder if the new formula is a shock to his system. I'm trying giving him half a can 2x a day and that seems to help a bit.