η_th, calculated from Equation (34) and the s-PDF, vs. η_mes, directly measured on the η-PDFs, for runs with ﹩{ \mathcal M }=3﹩, 5, 10 (light to dark red). Runs with ﹩{ \mathcal M }\sim 3﹩ and ﹩{ \mathcal M }=10﹩ have two values of η_max, one for each resolution N_res = 256 and N_res = 512. We note the excellent agreement between η_mes and η_th.