Cast to handstand with full turn
The cast full is quite a rare skill in modern elite gymnastics. It suffers from the double whammy of being worth less than the other full-twisting pirouettes (the toe full and Stalder full are D elements) and also being basically impossible to perform without significant vertical-finishing deductions—accounting for the gradual death of all full-twisting pirouettes. It’s very tough not to lose at least three tenths on this skill.
As a result, the cast 1/1 is performed by no one who has anywhere else to go.