From Facing Couples or T-Bone 2 x 2s in which everyone is a Trailer.
  - Split Swap:
- As one movement, Belles Box Circulate & 1/4 Right as Beaus
      1/4 Right & Box Circulate.
  - Reverse Split Swap:
- As one movement, Beaus Box Circulate & 1/4 Left as Belles 1/4
      Left & Box Circulate.
Facing Couples end in Back-to-Back Couples.
| |   |  |   |  | before Split Swap
 |  | after 
 | 
 | |   |  |   |  | before Reverse Split Swap
 |  | after 
 | 
 | 
Notes:
- 
Split Swap should be visualized as a Lead Right while doing a
    Half Sashay.  Think about moving counter-clockwise one position
    while turning 1/4 to the Right.
- 
The above definition is carefully worded (i.e., as one movement)
    so that everyone can Roll.  Other glossaries may have definitions in
    which not all dancers can Roll.
- 
Split Swap is also known as Split Swap Around.
- Alternative definitions:
- 
  - Split Swap:
- As one movement, Belles Walk as Beaus Dodge; all 1/4 Right.
 
 
  - Reverse Split Swap:
- As one movement, Beaus Walk as Belles Dodge; all 1/4 Left.
 
Shake & Rattle [C3B] (Lee Kopman 1978):
 From any 2 x 2.
Leaders Shakedown as 
Trailers Reverse Split Swap.  
Ends in a 2 x 2.
| |   |  |   |  | before Shake & Rattle
 |  | after 
 | 
 | |   |  |   |  | before Shake & Rattle
 |  | after 
 | 
 |