the point im trying to make is some people are trying to say this cross has stamina and can run all day etc when the fact is they dont have a lot of stamina and dont stand up well to long runs, lots of work or rough terrain. you will get a one in a million dog here and there that can do these things but in general the whippet/greyhound has a short shelf life as a serious working dog. thats why not many people ever use them for serious grafting, running the fens, long nights lamping etc.