There are some really badly bred Jacks out there.You need to look up resectable breeders and view the dogs,bitches and pups.Make sure you go and see lots of breeders and view there dogs.Im sure you have read up and studied the breed before your decision on a Jack,and the different kinds of JRT's.I love the Parsons myself,but here in Australia they have been inbred and there are very few good breeders of the way a Jack should look.Congrats on choosing my favourite breed.Good luck and keep me posted.