Single File:
*** Either the notes, or your interpretation is wrong. The person in front does the part of the dancer who
*** would normally first reach the dividing line between the couples or mini-waves within the normal version
*** of the call. Hence on a Single File Flutter Wheel, the center acts as a Belle, whereas in a Single File
*** Reverse Flutter Wheel, the center acts as a Beau. Since on a Beau Hop, the Beau reaches the center
*** line first, on a Single File Beau Hop, the centers act as Beaus.