the malx grey could be a very full on type lurcher, maybe to much for alot of people, there hyper temp might not suit alot of people. The gsdx grey are a more of a laid back temp, but still enough guts fire in there belly for any quarry, but more easy to live with thats why i had one. . but apart from mals + gsd they were other breeds back then before the bullxs , like wheatens, irish, that had nearly as good tenacity bulls , but once the bullxs took off in the 70s there was no going back.
Why u rehome ur bull bird , how come the swap to gsd x if dnt mind me askin not dig just wonde