The tail should be carried horizontal with the floor. The top of the tail should never raise above the horizontal position. It should not be flat or rounded. The tail shape is more important than the quantity of feathers. A full tail is desired,with 16-22 feathers.
More feather tend to change the shape, which is undesirable.
Splashes are occasion with grouse legs, this is not common. Sometimes with a crest. Shell crest not showing rosettes. Occasion with grouse legs, which is not common. Flights carried below the tail, bull or cracked eyes, and grouse feathers on the feet.