Reinventing the wheel?

As far as my personal plan, I'm not trying to re invent anything per se. My husband and I plan to produce the final product of Stag/Cat/EBT or Bulldog. We have put a lot of thought into this process, and we are very well aware that there will be culling, as with ANY breeding. I was inspired after doing research of the types of crosses the folks in OZ use. I have also spoken to folks that hunt with this type of cross over there, and they hunt the same style as my husband and I do. I see it as utilizing all the strong traits/characteristics of the aforementioned breeds and putting them into one dog. In theory these dogs will be perfect for how we want to hunt. Time will tell. As someone else mentioned, even when you're breeding "purebreds," you still have to cull through them, and not every one will turn out. Same reasons why you see folks crossing up curs of various breeds I suppose. I'm thinking that the folks doing those crosses have goals in mind as to what each part of the cross brings to the final product. What I'm doing isn't much different.