I was reading in Jack's book about dogs that are defensive masters by keeping a hold on the head of their opponent, thus staying out of danger by neutralizing the other dog's weapons (his mouth). My question is: are you more or less likely to get a "freak mouth" (a truly devastating biter) in a dog w/that style of fighting (the slick dismantler) as opposed to the hard-driving, barnstormer type of bulldog? I am not a breeder; my guess would be the odds are about the same, but it's just a guess.