i owned a half bred one ... bred out of a coursing grey (dam) x a ridge that was used for flushing deer (sire). he would pull deer with ease day and night (pre ban),catch rabbits no problem and even caught the occaional hare (lamped).
foxes he had only seen 6 in his life before i owned him and he was meant to be a spoon on them , i never tried him on them .
he weighed about 70lb id say and stood 26" tts but had plenty of pace and stamina.
he was a good gaurd dog aswell. bit dog agressive round certain dogs aswell.
alot of people seem to be doing the ridgeback/bull/grey but i cant see