Personally I think there is far too much fuss about the 'quality' of dog poop particularly where greys are concerned.I have found with all our dogs that the more exercise they get through the day the softer their poops become after the first one whatever food they are on. As long as they do not have the big D, show no signs of anal gland problems and are otherwise healthy looking and fit, I don't worry about it. To be honest I think many people only care because it is easier to pick up solid poops and the constant owner concern and food changes and 'firming up' additions actually upset the dogs and make the situation worse.