Continuum modeling of GX 301−2. a: spectra of the two NuSTAR FPMs in blue and purple with best fit model shown in black. Models with both CRSFs removed in turn and model without CRSFs are shown in green, red, and orange. b: χ residuals of best fit. c and d: residuals of best fit with both CRSFs removed in succession. e: best fit of alternative model with only one CRSF. f: best fit of alternative model without CRSFs. The spectra have been rebinned for plotting purposes.