I have a "full blooded" Dogo / Pit Cross.

I havent tested him on catching like I need to but physically, other than being just a tad on the big side, he is exactly what I was hoping for. This particular cross has worked out to be what Im looking for in a catch dog with other litters and that is why I am trying it.
I think its worth a try to get what you want if the gyp proves herself to be what you want in a catchdog.
Keep us updated on the cross if you make it. I sure would like to hear how it works out.