Comparison between kinematic measurement (RS sample in Table 1) and dynamical model F-J scaling relations for the clusters of galaxies A2744 (on the left) and M0416 (on the right). In green, we plot the MCMC best-fitting F-J scaling relations obtained from B+23a and B+21. In orange, we present the best-fitting F-J scaling relations of our dynamical model. The measured kinematic and dynamical σ values (σ₀ in our models) are reported as blue and red dots, respectively, with measured uncertainties as error bars. The total number of galaxies in the RS sample for each cluster is shown in the top right corner. We also illustrate the maximum likelihood relations as dotted black lines.