Typical comparisons between XSL and best-match GSL energy distributions for stars with relatively high metallicities according to XSL DR2 and with DR2-T_eff between 4000 and 5000 K. The comparisons are shown at R = 500, for the parameters that minimize the combined inverse-variance weighted χ² over all wavelengths (Eq. (2)). Gravity increases from top to bottom: HD 50877 (X0314), BBB SMC 104 (X0504), HD 44391 (X0563), 2MASS J18351420-3438060 (X0698), HD 218566 (X0739), HD 21197 (X0560). In the case of X0504, the best-match metallicity is lower than the DR2-value (− 0.6), which had justified its presence is this subset of spectra. Compare with Fig. C.9.