Does anyone else here have a cat that has crystals, who's a stubborn eater and loves the Urinary SO food? My 12 year old cat TK loves SO cat food and refuses to eat any other brand. But this food is not very good for him. It does not make his coat as shiny as it used to be...and is very salty and grainy brand of cat food. Does anyone have any suggestions on other cat foods for cats with crystals?