Standard deviations of the pull distributions about their means for each of the simulations. The three S/Ns are represented by different colours, as indicated above the top-left panel. The thick solid lines describe the linear regression fits to the data points with each of the three dispersions. The black point in each panel presents the standard deviation of the points around this fit. We highlight that the R_HVF panel has a different y-axis scaling due to the larger standard deviation values.