to be fair I have not seen many run ,I saw a half cross and as a hunter on open moorland it was awesome but lacked that burst of speed that puts game in the bag ..
I have seen a couple of 3/4 bred dogs to a whippet/grey,they were real good at rabbit but had thrown to the running dog .
I think the breed has a lot to offer and would suit my style mooching ,gamekeeping etc but would worry me with the speed....I,m not saying they cant run but sometimes you need that burst of speed that makes game make a mistake.
I have never seen a pure bred dog in the field <would love to>... I am po