Maybe this drawing will help
No1 is the ideal.
Natural short, carried at 45 degrees and as straight as possible.
But very hard to find
No2 is curled and carried at 90 degrees angle
No3 has the correct carriage, is straight but is too long
No4 is curled and carried more than 90 degrees, touching the back
No5 is a complete different breed
No6 has the correct carriage, is curled and is too long.