Mass-loss rates (upper panel) and modified wind-momentum (lower panel) found by the GA best fits, compared to the predictions made by Leuven (Björklund et al. 2021) and Vink (Vink et al. 2000) for each star in our sample. The GA mass-loss rates are those found from the best fit with optically thick clumping. Black cross in bottom right shows the minimum error on mass-loss rate and wind momentum ± 0.05, from this analysis, and error on luminosity ± 0.1 from BHL12.