My dogs used to be fed on Bakers. I used it because my mum did (silly reason really). I didn't know any different, but then I started reading up on foods and the effect that Bakers could have on dogs. Both dogs farted a lot and their poo's really smelt. They were also soft poos and very light in colour.
Anyway, my pocket wasn't huge, but i gradually changed them to Skinners Original. They love it and since we started the change (about 5 months ago) they never fart and their poos are dark brown, rock hard and have barely any odour.
Oh, and one other thing. One of my dogs had an anal gland problem. The vet said that most dogs natually squeeze their own glands when they do a hard poo. But when the poo is too soft, the gland can fill up. She had to go to the vet about 4 times a year to get them squeezed, but since being on Skinners she hasn't been licking her bum of wheeling across the carpet on her arse ... so I think the problem has been solved.