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tokens: The author would like to acknowledge research support from the Australian Research Council through Discovery Grant programmes DP120101237 and DP150103294. He is also grateful for the support received during an extended visit to the Institute for Astronomy, University of Edinburgh during which this paper was largely written. Thanks also to Ken Freeman, Russell Cannon and Elizabeth Maunder who conducted the 2010 December observations, and to Andrew Cole for providing a copy of the line profile fitting code (whose heritage can be traced back to that of Armandroff Da Costa ‘plus ça change, plus c'est la même chose’). This research has made use of the WEBDA data base, operated at the Institute for Astronomy of the University of Vienna, and of the VizieR catalogue access tool, CDS, Strasbourg, France. The original description of the VizieR service was published in AAS, 143, 23.