D = 14, tau_e = 1.0; columns: true E|Z_K|, whole-law V_D, split over all edge atoms (exact shifts), chord split (edge jump law replaced by its two-point chord law; proof-shaped)
RQ-B no-window rest                true 0.76650  V_D 0.83670  split 0.79455  chord 0.79510
edge spread 4 atoms + G            true 0.77490  V_D 0.84343  split 0.80406  chord 0.80600
edge spread + small atoms          true 0.77565  V_D 0.84541  split 0.80981  chord 0.81153
F maximiser (RQ-C C18)             true 0.82666  V_D 0.84467  split 0.82667  chord 0.82695
RQ-A 18:53 obstruction             true 0.79658  V_D 0.85747  split 0.80753  chord 0.80753
RQ-A edge y=1.2, w=0.055           true 0.79671  V_D 0.85249  split 0.80866  chord 0.80915
two-sided spread                   true 0.72590  V_D 0.81343  split 0.73904  chord 0.74180
0.3 d1.4 + 0.3 d0.7 + 0.4 G        true 0.78524  V_D 0.83313  split 0.82390  chord 0.82555
spread 0.6 on [1.2,1.54] + 0.4 G   true 0.77799  V_D 0.82707  split 0.79828  chord 0.80184
