The distribution of total mass |$m_\text{tot}$| for different models. The solid curves are the original models while the histograms show the total-mass distribution of the of the apparently most-massive event in each simulated catalogue. We consider three variations of the AGN model from Gayathri et al. (2023) with different maximum black hole masses |$m_\text{max}$| (top left, top right, bottom left). We include a globular cluster model from Rodriguez et al. (2019) (bottom right).