From Back-to-Back Couples or a T-Bone 2 x 2 in which everyone is a Leader.
  - Shakedown:
- As one movement, Belles 1/4 Out & Run as Beaus Run & Roll.
  
- Left Shakedown:
- As one movement, Beaus 1/4 Out & Run as Belles Run & Roll.
Back-to-Back Couples ends in Facing Couples.
| |   |  |   |  | before Shakedown
 |  | after 
 | 
 | |   |  |   |  | before Left Shakedown
 |  | after 
 | 
 | 
Alternative definition: 
  As one movement, 1/4 Right (if Shakedown) or 1/4 Left (if Left Shakedown); 
  Box Counter Rotate 1/4 & Roll.
Note:
- On Shakedown, everyone moves clockwise one position and turns 3/4 to the Right.
Single Shakedown [C3A] (Lee Kopman 1979):
 From Back-to-Back Dancers.
  As one movement, Right Roll To A Wave & Roll.  
  Ends in Facing Dancers.
| |   |  |   |  | before Single Shakedown
 |  | after 
 | 
 | 
Shake & Rattle [C3B] (Lee Kopman 1978):
 From any 2 x 2.
Leaders Shakedown as 
Trailers Reverse Split Swap.  
Ends in a 2 x 2.
Counter Shake [C4] (Lee Kopman 1979):
 From Completed Double Pass Thru.  
  Centers Shakedown, Veer Left & As Couples Extend as Outsides 1/4 Right,
  Counter Rotate 1/4
  & Curve In [C4] (as one movement, Press In & Face In).  
  Ends in Parallel R-H Two-Faced Lines.  Counter Shake is a 3-part call.