My best catch dog was a beardie/border x greyhound, Hancock's Taffy, bred to an extremely fast, greyhoundy lurcher bitch.
Caught me loads of hare and deer, when I did a lot of lamping.
Tremendously fast, powerful dog, but not great on the stamina.
But definitely NOT the best lurcher I've owned to live with, c**t did my head in on a regular basis!!
If he he wasn't so good at his designated work, I'd have outed him long before the 12 years I had him.