Staffy,,,,,, Dont be mad! like has just been said, there are better bull types out there and i thought you would know that as you have been a member of this forum for nearly 2 years.
I have a half x bull/grey which is first gen and a collie grey wippet they are kenneled together along with my two game terriers and there are no problems at all, the lurchers are dogs and the terriers are bitches, i guess it helps that they are always working as a team