Reduced χ-square values of the 14 selected r/s-stars. The red, black, and green patterns show the minimum values obtained with our reference i-process AGB model, a 2 M_⊙ [Fe/H] = −2.5 AGB model experiencing s-process and the solar scaled r-process from Arnould et al. (2007), respectively (see text for details). The blue crosses show the values obtained with the one-zone model of Hampel et al. (2019). The dashed red circles show the results obtained with our reference i-process AGB model, but with the same abundance data and uncertainties as in Hampel et al. (2019, see text for details).