i like the idea of using doge de bordeax, as i think the ddb has a lot of potential. but due to show breeders involved in almost all ddb breedings the potential (is sleeping) and doesn´t come out. so the heterosis effect could work better with ddb than other western mastiffs. you need male ddb with a natural distrust towars strangers and the drive you will get from the breeds you add. (ambull is a good possibilitiy, but i could also think of Gull Dongs wich are Bully Kutta x Gull Terr mixes for drive and fighting ability, hey and the dog would have a stretched boyd, still be massive and around 75cm if not even more) so yeah keep the good work up. i hope u produce more ddb Bandogs, i like them more than the neo crosses.
take care
sunnyAK

R.I.P. BISHOP
March 16, 1999 - May 8, 2006
You will always be my favorite dog!
I Love You & I Miss You!