Transmontano cattledogs and estrelas have nothing to do...they´re completly different...there´s no way you can get confused. As carla said, they were recognized as a breed quite recently and that´s because there was a lot of controversy about the diferences between them and the Alentejo mastiff. In fact they´re basicly the same dog, with the exeption that transmontanos are slightly bigger. There are some other small differences but sometimes is quite diffucult to tell de difference between the two. Regarding to estrelas, there´s no possible confusion, so I don´t understand your points about changing estrelas standard. :P