Compact radio source J123659+621833, which illustrates the effect MSSC has on the structure, fluxes, and noise levels achieved. The colour scale is fixed to the scale of the phase-referenced images to highlight changes in peak brightness and the noise profiles. Contours start at the noise level and are evenly spaced to the peak brightness of each image. Left panel: source when calibrated with only standard phase referencing. This has a peak brightness of 824 μJy/beam, integrated flux density of 1.35 mJy and an rms noise level of 14.7 μJy/beam. This gives a maximum S/N of 56.1. Note that the image suffers from significant side lobe negatives next to the source. Right panel: the source with MSSC applied. The peak brightness is now 1.28 mJy/beam, integrated flux density of 1.73 mJy and an rms noise level of 11.1 μJy/beam. This results in a greatly improved S/N of 115.8. The side lobe structure has reduced in amplitude and the source is more compact.