COSEBIs B-mode measurements for the North-South split catalogue. The green and purple data points show the measurements of the KiDS-North and KiDS-South sample, respectively. Each panel represents auto- or cross-correlation between tomographic bins, as indicated by the label in the top right corner. The corresponding p-value is denoted in the top left corner of each panel. The p-value of the combined data vector is given in the top left corner of the figure. For visualisation purposes, we display the discrete n modes with an offset on the x-axis. We note that the B-mode signals are highly correlated within a tomographic bin and advise against a so-called ‘χ-by-eye’.