Comparison of spectral fits to selected optical and NIR lines from the supergiants of our sample. Observations: gray; synthetic profiles from best-fitting models without (black) and with clumping using various clumping laws (for color-coding, see legend). The stellar and wind parameters of the individual best-fitting models are provided in Tables 5, 10, A.1, A.3, A.5 for the optical lines, and in Tables 6, 11, A.2, A.4, A.6 for the NIR lines.