Example of C IV λλ1548–1550 line profiles for different reliability categories from highest (top panel, rank i) to lowest (bottom panel, rank iv). Two profiles shown in this figure are from LMC stars (Sk −65° 47 and Sk −71° 19), and two are from SMC stars (AzV 26 and AzV 216) from the highest to the lowest panel: Sk -65° 47(O4If), AzV 26 (O6If), Sk −71° 19 (O6III), and AzV 216 (B1III). Black lines are the observed spectra. Red lines are the best-fit SEI model. Vertical dashed black lines highlight the fitting region for the SEI model. Horizontal dashed black lines show the S/N limit on the minimum flux of 0. Blue lines are the minimum flux within the S/N.