I ran with a dogo imported directly from the Martinez family in Argentina. First time we went out, the dog was less than a year. He didn't range at all. He growled at a 7 year old boy and started a fight with a pit (was also snapping at hands when trying to break up the fight.) Second time we went out, he wouldn't go into a bay. We walked him right in within 20 feet, but he wouldn't cross a stream to get to the pig. Third time we went out was at a high fence. He caught a sub-100 lb pig that was already caught by a jagdterrier. The second hog was about 180 lbs. He was slapped on the way in. He sat back and bayed. That 3000 dollar, imported dogo was culled.
I have ran with three other dogos. All of them have been slow to start. Don't expect a finished catch dog until they are two years old. 90% of the pits from the pound will catch hard at six months. Dogos do have a great gait. They are fast too. I think if you crossed one with a game-bred pit you may end up with something a little quicker starting and rougher on hogs.
I believe this post sums it's up for me if I was ever considering getting a dogo. ( which I am not)