For over 40 years now I've kept collie crosses and still like them a lot. A few years ago one of my sons got a bull terrier and I found him surprisingly intelligent and responsive.I now have a 10 month old pup with 1/4 pit in him and he too is very bright and responsive though in a different way to my collie crosses.
As a man with a lot of experience of collies, how would you say the 2 breeds compare as lurcher breeding material.