Certainly used to work a lot more freight than they do now...
have worked at least the following regularly at some stage on Southern WCML, plus more i'm sure i've forgotten about.
Speedlink/Enterprise general workings
Parcelforce pocket wagons (loco off van duty)
Introduction (much delayed) of 92s took up a lot of the freight workings. This coupled with EWS coming in and reorganising pools saw skodas used on less freight and more van trains (previously just 016-020 RES sponsored)
Basically been out on West Coast passenger duties since introduction until December 05, scottish sleepers since 97. Plus GNER workings...
Still have a daily Wembley-Garston and return car train and occasionally appear on enterprises down here, often in multiple.