From applicable 4 x 4 Matrices. EN: 10

Dancers in the inside Phantom Columns do two Phantom Columns Circulates as dancers in the outside Phantom Columns do either two "O" Circulates or two Butterfly Circulates (depending upon whether they are in a Phantom "O" or a Phantom Butterfly). EN: 20

Non-T-Bone starting formations usually end in Generalized Columns. EN: 30