my dog has a small amount of whippet in so i can't really comment, however there is a guy just down from me with an absolute stunner of a working whippet and when i've seen him out with his dog's the whippet is the first to break and work the heavy cover with never a sound or a mark on it, and it's a quick little dog, if i had space i would genuinley have a working whippet as i'm really impressed with the breed.
atb natter