My 5 cats have eaten Merrick's Bistro chicken for years as part of their diet. (50% calories wet/dry) I credit it for their shinny coats and overall healthy appearance. Recently, Merrick changed the formula to chicken and sweet potato, lowering the protein value. First thing I did was run out and buy all the bags of the old formula I could find. But now, I'm down to the last bags. I've got to options in mind but am open to suggestions. 1) Switch to the Bistro Kitten formula which has remained the same. 2) Switch to Instinct chicken formula. What would you do? By the way, I use only 4 or 5 lb. bags as I like to keep it fresh (I know, crazy cat lady) so whatever I switch to needs to come in a small size.