I do still agree with you, my explanation was more geared to the corsos/corso type dogs of Italy. The dogs in Canada, United States and Europe do share a common lineage, whether from the past dogs or current crosses. I do not see much difference between the corsos from each respective nation. I see the variety in each of these nations corsos. I think now many maybe resorting to panicing in order to force a unformity in conformation, its a strange coicidence that this happening right when the Akc is providing foundation stock service for the American Corsos.