Plots of the flux decrement, which is the maximum flux density observed for a source of unit amplitude that has been corrupted by phase and delay solution transfer from one of a pair of LBCS sources to the other (see text). Left panel: flux decrement against separation of the sources. Right panel: flux decrement against percentage of baselines to ST001 with clear source detections. In both cases the red circles indicate those cases where both LBCS sources in a given pair are also JVAS sources.