From a 4 x 4 Matrix, visualized as 4 adjacent Columns | Lines | Waves.
Split the 4 x 4 Matrix into two sets of adjacent Columns | Lines | Waves
  and work in the resulting 2 x 4 Matrix on each side.
 
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 |  Work with these positions for Split Phantom Columns |   | vor Split Phantom Columns Triple Cross |   | nach
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 |  Work with these positions for Split Phantom Lines | Waves |   | vor Split Phantom Waves In Roll Circulate |   | nach
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Hinweise:
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If the given call requires you to know the facing direction of a phantom, look at that phantom's
    opposite within the Split Phantom Columns | Lines | Waves formation.  Hopefully that spot is
    occupied by a real dancer, in which case your phantom is facing the opposite direction of that dancer.
    This is known as Assume Symmetry.  Some callers believe you should always do this; other
    callers believe you should never do this (I am of the latter opinion).
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If the caller says Split Phantom Waves, then you have more information 
    about the facing direction of the phantoms: they must be in Waves!
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Imagine there is a brick wall dividing the two halves of the set.  
    This can prevent you from crossing over into the other half of the set.
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Shape-changing calls are allowed.  Do the given call, keeping track of the phantoms, and breathe
    as necessary so that the two resulting formations are adjacent to each other.
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Historically, Split Phantom Columns | Lines | Waves have also been known as
    Phantom Split Columns |  Lines | Waves.
 
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 From a T-Bone starting formation, each dancer individually determines how to split the 4 x 4 formation.   
 
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 |  vor Split Phantom Waves In Roll Circulate |   | nach
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 Split Phantom Columns | Lines | Waves is also occasionally used from a 1 x 16.   
 
 |  Work with these positions for Split Phantom Lines |   
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 Siehe auch