Hi mate this as proven over time to be a very good cross....... You are taken tow compleatly unrelated famleys and crossing them..... This produces high bred vigure and the offspring are normally far better then the parents..... But most of the time they won't breed on...... Hope this helps.... Uk hi uk what do you mean by they won't breed on.....as in they won't breed anything as good as them selfs? Cheers when you cross to unrealeted famleys the offspring in most cases are far superior then the perants.... But most of the time the offspring don't produce owt as good as them self..... Uk