Comparison of v sin i of C and SB1 stars from this work with those measured by Holgado et al. (2022). The values scatter around unity (solid diagonal line). Regarding the C/SB1 classification, the Holgado et al. sources with line profile variation (LPV) are matched with our Cs. Stars with different C/SB1 classifications are marked: we find more slow SB1s (red) and Holgado et al. find more fast SB1s (blue).