i guess its just personel points of view, but id expect my terriers to use rats as a starting point with hope that when their ready to move onto biggr quarry, which makes rats easier to take, in my opinion, ive never used plummers but weve had cracking rat numbers with russels , patts and lakies, which were all earth dogs
fair comment. however i have a little experience of coloured terriers and plummers working rats and still disagree. . based only on the terriers ive worked or seen work of course.