Iv been to The mans yard My self, I have dog pup out of Stan to my 1st cross bitch, he's a gent, he told me that billy was a first cross dog, no mastive, when he showed me pictures, Sally was 3/4 bull, montey was by billy, can't Rember what bitch, my cousin has a son of monty, before anyone sks I'm not giving his number out, and if you need to contact him you must know some one that knows some one, Stan, Bryn, monty, max would be by billy to all different bitches, atb with the dogs youv got out of the stuff, some are big some are small some slow some fast, some good some bad, just work them en