Hubs | Rims Trade Back starts from Parallel Lines or a
Thar | Promenade. EN: 10
Hubs | Rims Trade anything starts from a Line or other
applicable formations. EN: 20
Hubs Trade Back | anything:
All Partner Trade; original Hubs (original Centers who are now Ends)
Circulate or do the anything call. EN: 30
Rims Trade Back | anything:
All Partner Trade; original Rims (original Ends who are now Centers)
Circulate or do the anything call. If the
anything call is not an 8-dancer call, the
new Centers do the call Concentrically (i.e., working in the Center). EN: 40