What is a requirement for the last special move in an entry variation?

The requirement for the last special move in an entry variation is that it must be linked continuously to the start of the pi rotation. This linkage is important because it ensures a seamless transition from the special move into the rotational element, maintaining the flow and cohesion of the routine. The combination of these elements showcases the team's ability to execute complex movements while simultaneously adhering to the choreography and maximizing the presentation quality of the performance.

In synchro skating, transitions between moves need to be fluid and interconnected, which helps to demonstrate the skaters' synchronization and skill level. Making this link provides clarity to the judges regarding the execution of the routine and enhances the overall impression of the performance.

While the other options mention aspects that could enhance a performance or highlight technical skills, they do not specifically fulfill the requirement for linking the final special move with the pi rotation, which is essential for meeting the criteria of that specific element in the routine.