i reckon their rarer than hens teeth.
Thought as much a mate had one 30 year ago he was a real clever dog loved crashing through cover surprised they weren't used more in lurcher breeding.
A real nice cross that one stonewall did he make oldbones mate
the funny thing was when he was young he had got a few raps of electric wire like most lurchers.while out lamping and day time hunting and it didnt phase him too much.it wasnt until he got too 8ish that he got roasted on a good few wet windy nights out lamping,and that f****d him. so much so if u were between game and wire hed run the lenght of wire looking for a break then make a bee line towards game,during the course hed be fine,in the end i began to lose game with him it was either go under each wire and then slip,but to be honest i didnt mind hed given me a good few yrs sport and i retired him too a friend.that fucken wire i reckon has destroyed many a lurcher.a long answer to ur question.