The only successful technique yet established for automatically identifying polarization directions and time-delays from digital records of shear-wave splitting is the Cross-Correlation Function, or CCF technique of Gao et al. (1998). CCF was used on SIL records from SW-Iceland. It was not successful (Volti and Crampin 2000). The reason is thought to be that the data that was used to test CCF was an isolated swarm of small earthquakes, whereas the foci in Iceland are more distributed so that shear-waves propagate along significantly different ray paths. This suggests that reliable automatic reading of shear-wave splitting in Iceland is unlikely to be successful.