Integrated intensity of the SiO emission at ambient velocities with the contribution from the broad outflow emission subtracted, for CygX-N3 (left), N12 (centre), and N40 (right). The top row panels show the narrow emission as greyscale, with contours from the high-velocity (broad) SiO emission from Fig. 2 overlaid. The two lower rows show the integrated narrow SiO emission in contours (with steps of 0.1 Jy beam^-1 km s^-1, starting at 0.1 Jy beam^-1 km s^-1), with the colour scale showing the respective moment maps: the velocity field (first moment map) in the middle row, and the velocity dispersion (second moment map) in the last row. Annotations are as in Fig. 2.