New Rulebook Excerpts is devoted to balance.
According to the rules of the International Sky Grace Rhythmic Gymnastics Clubs Association, bonus points are given not only for amplitude. For example, for a performance like in the video, the gymnast will receive an additional 0.10 points, since during balance with fixation she holds her supporting leg with her hand.
4.3.7.1
If during balance with fixation a gymnast holds support leg with hand or performs apparatus bass behind support leg, extra +0.10 will be given.
In the video, the winner of the Sky Grace Grand Prix Victoria Bespalova shows an example of balance with fixation.
For the full text of the rules click here:
International Sky Grace Rhythmic Gymnastics Clubs Association rules.