MASSCW specific-intensity–weighted mean redshift RV results. Top: distributions of , showing 100 randomly selected ECDFs from our prior (grey curves), and a geometric model CDF (green curve). Both data and model consider LSS up to redshift z_max = 0.2 only. The other geometric model parameters are: w_f = 5 Mpc, l = 50 Mpc, d₁ = 25 Mpc, 𝒞 = 10⁶, α_f = α_c = −3/2, β_f = 4/3 and β_c = −4/3. Bottom: geometric model CDFs of for filaments only (𝒞 = 0), though including all of them (z_max = ∞). By far the most influential parameter is also the most uncertain one; we therefore vary β_f over a plausible range. We also vary l ∈ {50 Mpc, 75 Mpc, 100 Mpc}, and by extension also w_f and d₁, by forcing and . As l increases, the unit cell number density decreases; we symbolise this with more sparsely drawn curves. We keep α_f = −3/2 constant.