I know this classification done by a French gentleman. However i guess people called dogs Alaunts, even before he made this classification and I guess some others still didn´t call dogs Alaunts after his classification. Some called them Le Mastin, Dogue, etc and didn´t use the "Alaunt name" at all. However coming back to the examples of dogs you have mentioned for the classification the French man made. In my opinion here you mixed up some things and got it wrong. You mentioned the Presa Canario as an example for the Alaunt Veantre and the Ambull as an example for the Alaunt Boucherie. I don´t consider them at all to be different types and would put both into the same category. I don´t consider the Presa Canario to be an Alaunt Veantre like you do, I consider it to be a Butchers´ Mastiff in type, later culled for fighting. With that said I would put both, the Presa and the original Ambull into the category of the Alaunt Boucherie. You classify the Presa Canario as an Alaunt Veantre so where do you see the sighthound in this breed? Cotgrave defines the "Veantre" as a mongrell between a Hound and a Mastiff. I don´t see the Hound in the Presa Canario, while for example enough Bully Kuttas almost scream "Hound" looking at them, similar to German Mastiffs aka Great Danes. So your comment (infused with sighthound) beside the Alaunt Gentil, should better stand beside the Alaunt Veantre. As the Alaunt Gentil was basically a Sighthound infused with some other types to make them tougher, but still primarily a sighthound!