Top panel: B/C residual (vs. R) calculated from the difference between AMS-02 data and our reference model (best-fit model). Bottom panel: B/C residual (vs. E_k/n) calculated from the difference between various R-to-E_k/n-converted B/C (red, blue and black lines) and the “exact” B/C (reference model converted with correct isotopic content). The AMS-02 data vs. E_k/n are taken from Aguilar et al. (2016), and result from the same conversion as done for the solid black line. See text for discussion