Id like to be a combo. I'm always thinking of things that might be giving my dog an edge. Every dog in the yard has earned to be brought up to his full potential. There are other dogmen that would be able to get more out of the dogs, im sure. I'm not that high on myself. We can only do our absolute best for every dog every time. But if a dog doesn't work out. Get rid of it. Ending up with to many dogs will kill your progress.