| 
                
                     
                 | 
                
                     
                 | 
            
| 
                    START: parallel two-faced lines (#29)  | 
                
                    
                        mentally visualize end formation: all couples step forward; all couples rotate 180°; out-facing couples move to form in-facing ends; in-facing couples move to form in-facing centers  | 
                
                    END: double pass thru (#25)  |