My choice is docked tails, they don't get caught in doors,and tailgates,or bit by yotes, also don't beat bloody on the dog box.As for "a rudder". Cut the tail off an older dog, he may take awhile to get used to it, but I dock pups at 24 hours old, they can't even walk then, they never know the difference. All pups born here get tails and dewclaws removed.I leave just enough tail for a "handle".