Normed distribution of lnP for various numbers of realizations N_R of the model. Each distribution is generated in the conditions of the “Fattening E” case, at “true” input values (cf. Table 4) and with the same seed for galaxy generation in Stuff. Standard deviation of the distributions do not appear to differ significantly. We conclude that 20 realizations of the model are enough to characterize the order of magnitude of rms.