Comparison of equivalent widths for N iiiλ4097 and λλ4640/42. Black diamonds as in Fig. 3 (original results from MH). Other models with [N] = 7.92. Blue asterisks from tlusty (OSTAR2002), red triangles from fastwind, using new atomic data and realistic line-blanketing; purple squares: as triangles, but with temperature and electron stratification from tlusty. For details, see text.