Relative difference between secondary-to-primary ratios calculated from the BPL and PL primary spectra, in solid lines. From top to bottom, the four panels show Li/C, Be/C, B/C, and F/Si. The hatched area shows a 3% shift related change in the production cross sections of the secondary in the numerator of these ratios. The shaded band shows the AMS-02 data relative uncertainties (systematic and statistical uncertainties added in quadrature). We see that both areas overlap, showing that the difference between assuming PL or BPL does not impact our conclusions. We give more details in the discussion in the expanded text in App. A1.