Swing & Mix is no longer explicitly listed on the 
CALLERLAB
    A2 list. 
    However, the calls 
Swing [A2] and 
Mix [A1] are on C
ALLERL
AB 
    lists.  
    In our opinion, 
Swing & Mix should be listed on the A2 list as
    a separate call because it can be done from Facing Couples.
    According to the current C
ALLERL
AB definitions, a 
Swing & Mix is a 
Swing 
    followed by a 
Mix.  
Swing, as defined by C
ALLERL
AB, must start from 
    a Wave or Inverted Line, not Facing Couples.  
    
Swing is defined as 
Ends and Adjacent Centers Arm Turn 1/2.
    However, 
Swing & Mix
    is still widely called from Facing Couples, and it should be legal. 
EN: 120