Is that dog in Liverpool mate, if so, it's a strange lookin critter and has one hell of a reputation, pity its a jaffa though...
Stabba, your logic is sound but I'd agree with Christine here, its that Staff blood that would really count. I'd bet over the water there would be dogs to suit.
I recon there may be a few breeds (if the right ones could be found!) that, if crossed, would go into a decent enough busher. Here's two, the Clumber spaniel and the Bassett Hound....?
The only two no no's for me would be going to ground and working to far away, after that a good nose, drive and an aversi