I switched to Chudleys Greyhound racer about 2 months ago and mine all look in the peak of condition, glossy coats (no dandruff even my black one you can see your reflection on her), plenty of energy but not hyper and that includes the pet dogs as well. None of them have gained weight or become hyped, stools are dark, firm and a lot less in number
Only one will be a working dog, she's 9 months at the moment, yet this food suits all of mine and i won't be changing it to anything else.
Buy it online from http://www.greyhoundsuperstore.co.uk/displayprods.asp?curpage=2&qid=127&q