[Britster]

You are making a picky dog. If you keep giving him a new food every time he stops eating, he's got YOU trained. I don't particularly like Pro Plan all that much but if it's working for your dog... that's what matters and I wouldn't go around switching if he's doing well on it.

However, I do like to rotate after every bag or two so boredom doesn't sit in and he begins getting picky about his food... so I do like to rotate a bit. But that is up to you!