Illustration of visual classification process for two configurations on 11 Jul. 2010 overlaid on eclipse data. Yellow arrows mark good matches between observation and field line simulation, while red arrows mark mismatches. Panel a: thus shows a well-matching configuration (R_ss = 1.9 R_⊙ and R_scs = 1.5 R_⊙), while the field line solution in (b) is rejected by our criteria (R_ss = 2.8 R_⊙ and R_scs = 2.4 R_⊙).