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Interesting. Hb definitely less intense compared to the nearby FeII and Ha, as Malc found. Also FeII at 5018 less intense than FeII at 5169 - it was a different story a week ago.
I'm wondering if what we're actually seeing here is an artefact of the SA100 resolution. There seems to be complex structures of emission and absorption now visible, as the outer layers of the ejecta become optically thin. I wonder if the SA100 is just capturing a lessened emission when in reality what's there is a strong emission and a strong absorption just next door?
Have to wait for Ken's spectra to be sure.
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