I understand how the cueing of the calibrated spin from an Egyptian 1/2 turn works.
However, I don't quite understand the cueing from the Basic Egyptian without the turn, such as what you would see after a fade.

On Vol. 7 it appears from a stagger, the leader cues spins from the Egyptian 1/2 turn, then fades with Basic Egyptian, then '2nd leader' does the turns from Basic Egyptian without getting into the 1/2 turn 1st.

The 'mini-performance' prior to the instructional section for Spins shows Megha bringing arms horizontal for 4 counts, then up overhead for 4 counts, then proceeding with spins on next count of 1.
However, in the performance section at the end of the video - 2nd number - quartet dancing to Sout with Spice, after the fade, Megha goes straight into spins without cueing, albeit at a change in the music.
During the instructional section, sometimes Carolena brings arms horizontal for 4 counts, then goes into spins, whereas sometimes she brings arms horizontal for 4 counts, then up overhead for 4 counts, then goes into spins.

Is there a hard and fast rule for this, or is it based upon the music?
Thanks.