Correlation coefficients among the stellar label estimates, predicted by the CR bound calculation (see Eq. (3)). These correlations were derived for the spectrum of a fiducial B-type star with T_eff = 18 000 K, log g = 4.0, [Fe/H] = 0, and vsin i = 100 kms⁻¹. Prominent among the correlations are those between estimates of T_eff and log g, and between N_He/N_tot and both T_eff and log g. The nontrivial correlations suggest that most spectral features are somewhat blended and thus call for a simultaneous fit of all pertinent labels to the entire spectrum.