Maddy was a very picky puppy as well but now shes got a few months under her belt shes a lot better, maybe you should try with some better foods, I definitely recommend Burns - ive just switched to it with my two and they love it, smells of fresh fish! I dont think you'll find a single American feeding winalot because its simply not something they get like we don't get most of their stuff, from what Ive heard its a few good commercial brand, meaning if you have to pick from a supermarket shelf its quite good, however, like I say Burns is lovely, you can send off for samples on their website, see if Bruce likes the sample and if he does start introducing it.