Your description i think is corectly because in this mode is and my Jazz.
Have nerv for working but is totaly dominant and crazy with other dog. Unfortunately become incontrolable and because i get Jazz at my home at 2 years old (exactly finished character age) totall un-educated.
Like one jocke : My Jazz can mate one female without female be in session. And one male
I think this characters are very strong writed in genetical code and need one special mother-side. For this reason i talk about..one stable Bara genetical key...because in past i know..similar situations
And Naplemente too