Evolution of the Hα FWHM in the NOT+ALFOSC Gr#4 1.0″ spectra over time. For each spectrum in the second season (after around +230 d) we fitted two Gaussian profiles to Hα, but those corresponding to the broad base are not shown here. As alluded to above, all spectra were taken with an identical setup. The values have been corrected for instrumental resolution. The errors on each point represent a characteristic error, determined by repeated sampling of the skyline and Hα FWHM of the +306 d spectrum.