C IV line profiles (black) calculated with our code for two models using the KWD95 prescription for a biconical rotating wind. In these particular calculations, the ionization abundances were fixed, and C was assumed to be all C IV. The upper group of profiles is for KWD95’s fiducial model of a wind with a wide opening angle, while the lower panel indicates the results for a highly collimated wind. Four inclination angles, 30°, 60°, 75°, and 85°, are shown for each model. For comparison, the figure also shows profiles (gray) calculated with the "exact" MC code described by KWD95. The models selected are identical to those used as fiducial models by KWD95, and this figure is almost identical to their Fig. 9.