Justin, that would be extremely interesting. I definitely understand that you would like to get confirmation first. Regardless, you probably have more knowledge than all of us combined, so whatever you can share is much appreciated.
Ill try to post what I know or found out and have some proof of first hand. Keep in mind I wouldnt consider myself an expert on these dogs. I have never owned one.
-They are the height of great danes but ussually of thicker bone structure.
-Ussually all white or mostly white. Can have bulldog markings and coloring. Can be brindled. Can be fawn. Can be spotted. Black too allegedly
- There are 2 similar types I like. There are many many many different slang terms for these 2 types depending on the region.
-One type resembles an all White American Pitbull Terrier head on a well built Dane body.
-The 2nd type has the same height but is a little thicker it has more dulap and wrinkles especially under kneck. Head is slight more boxy and broad. One of the most impressive dogs I have seen.
-The males can be very dog Aggressive
-The are 100% a game working dogs
- Unfortunaly they have huge fighting tournaments with tons of spectators. Looks like people watching a popular soccer or football game.
- never seen a dog that large have such endurance especially in the heat.
-They have been imported to Japan to be matched with Tosa Inus. The Tosas won.
- They were primarily bred for field fighting and baiting
-Extreme tolerance for pain
-Durring British colonization Great Danes and Brittish bull and terrier breeds began crossing with Indigenous Pakistani and Indian mastiffs. Or what some would call the Original Bully Kutta.
This is why there are different types. Subject of much debate. Same story for every country and their native dogs though. As per ussual the best examples of the breed show traits of mastiff, Bull, and Terrier.
-Also said to have been originally created as a live stock guardian dog and guard dog....
Many fakes out there. Also many poor example even in its homeland.