Sad to say that this was/is the problem with the family of dogs. They are beautiful animals and people started breeding them just for that and nothing else. I really do love the ones I have but then again the folks who bred them used them for dog sports like Schutzhund and french ring. So without even knowing that they where making bulldogs they did. They looked for dogs with very high prey drive, natural full hard grips, rock solid nerves, smarts and wind. I've tried some from the "pure" or close to pure families of dogs and they sucked ass. weak nerves and cotton mouths. Most of the OFRN dogs are cold until 2 or 3 years old. I myself like the last outcross breeding I did. I took a 62.5% Gambler's virgil bitch and bred her to my OFRN male and got a litter of 6 pups. 3 males and 3 females. 1 male and 1 female had temperament issues. The male wanted to kill anyone except my wife and I and the female would piss herself getting away from everyone. But at 11 months old the male got on my last nerve so I culled him for growling at kids. But before I did I checked his oil and I had a very hard time letting him go after that system check. 2 went into working pet home that do stuff like agility and then I kept a bitch and she is very nice but BIG I mean like on the chain 55 pounds big. good friend has one male who is very nice and the runt male was my wife's dog that got out of his kennel and into something that caused him a serious blockage this happened while I was in the middle east. I currently have a litter of 12 that will be 2 in November so I am trying to wait to see how this very inbred litter will work out. Time will tell. I do have a good friend down south who has OFRN dogs and they are breaking hearts in the bible belt with their gameness and ability but still not all of the mouth he wants. But he is working hard at selecting the right ones to keep within his yard. There are two guys who I know very well that have the OFRN dogs but they are crossed with the Burton's Hank dog and they are really nice.