We believe that the WOMBAT ambient noise model is more likely to be correct in this region, because the AuSREM crustal S-wave model is largely derived from continent-wide ambient noise tomography, which makes use of far fewer stations in southeast Australia. However, AuSREM is still only in its first release, and it is likely that any updated version will include new datasets such as that provided by this and other recent studies (e.g. Kennett et al., 2015).