Correlations between M_H, env and pd (left panel), M_H, env and optd (middle panel), and M_ej and s₃ (right panel) using the results from non-standard pre-SN models. Right panel: the dashed line indicates the expected declination rate for full trapping of ⁵⁶Co decay. Each subplot contains the number of events (N), the Pearson correlation coefficient (ρ), and the probability of detecting a correlation by chance (P). Blue triangles show the results of using non-standard pre-SN models, while green squares indicate results from standard evolution. SNe labelled as ‘non-standard’ have Bayes factors greater than 10^1/2.