Comparison of vsini data: a) values for the 94 stars (with spectral type equal to, or later than, B6) in common between Abt et al. (2002) and Levato & Grosso (2004). The dashed line stands for the one-to-one relation and the solid line is the result from Eq. (1); b) values for the 199 stars (with spectral type equal to, or later than, B6) in common between merged data from Abt et al. (2002) and Levato & Grosso (2004), and Royer et al. (2002b). The solid line is the result from Eq. (2); c) values for the 44 stars (with spectral type equal to, or later than, B6) in common between Huang et al. (2010) and previously merged data. The solid line is the result from Eq. (3).