
Did it say when the topline went, was it when he was moved? I think it is unlikely that the topline can be improved in any way except by making sure the dog is in hard condition.
You can 'hide' a poor topline when stacking or even when free standing but all is there to be seen when the dog moves, some judges will be keen to see the dog in action but you will find those who do not really seem to look at the dog when moved although they have asked for it, seems a sort of habit because they seem to loose interest in the dog and turn to the next quickly unless, of course, it has lost its topline.