mate if you can get the dogs plenty of excercise and obviously fed well i cant see a problem.dogs need plenty of galloping especially pups (every day)from about 5 to 6 months.even as a learning factor to yourself,give it a go.in my experiance rearers can stuff dogs up or make a dog.i sent dogs out and then i was totally dissapointed in them and they were never galloped properly.aswell they need to be handled by people ,ive bread nice dogs that werent handled and turned out spooks and turns out to be untrainable.cheers jimdog