Dog aggression can be a factor if they are not socialized from an early stage. Ours however are not dog aggressive at all. Obideince is a must. Ours all have formal obideice training. It is easier to bring out there prey drive and controll the aggression if you have complete controll of your dogs. Its like an "ON/OFF" switch. We train our dogs in the "One Out" style as well as together. This is just what I prefer because its more of a challange for me and my dogs. They love the challage of a big one. As you can see from the pics Zen is smaller and faster and more agile than Gage, but they both or extremely athletic and strong as bulls. I would love to bring em down one weekend so you can see just how they handle and work together, with each other and your dogs. You can check out the lin below to see a basic page of my website. It is currently under construction but should be up by this weekend. We are "One Out Kennels"
please feel free to call me or email me if you want to talk or interested in a puppy. We will have pupps ready to go by April. I know a lot of people think they are expensive but we are looking for a select few to send them out to, at a discounted price.
Mike
http://www.oneoutkennels.com/