Had one first cross fawn in colour big dog about 28inchs tts . Stone useless he had gears in straight line but one turn and thats him taking days to get back in there, as for gamness he was okay wouldnt be near as game as a bullx, wheaten x or deerhound . Had decent stamina but nothing the above cross wouldnt add. In the end i gave him away to a mate to use as a watch dog as he was handy at that.
I would not dream of crossing one as theres nothing they could add to a greyhound that you would want in the feild.