My daughter's Campines sometimes start out with really nice tails that they hold at the correct level and then as they mature, their tails come almost straight up. Can you talk just a little bit more about how to breed for the correct tail set? I understand the narrow and shallow, and I will direct her to this conversation, as a young breeder, how does she go about selecting for the width and depth out of what stock she already has?
If the tail is to high breed that bird with a bird whose tail is too low. Depending where you are starting it may be better to find birds that have the tails you want. It is not just the height of the tail, it is the width and the amount of tail spread when it comes to tails. Check the SOP to see what it should be and then breed to extreme's to get it where you want it.
Walt