Maximum solid density evolution as a function of time comparing the effect of the size distribution exponents and the particle size ranges given N_p = 70 per cell. The initial particle scale height is H_p,init = 0.015H_g, except in thecase of the yellow curve, where H_p,init = 1H_g. The metallicity is shown on the top axis. The dashed line corresponds to ρ_p,max ∕ρ_g = 100, which represents our assumed threshold for solid clumping. Independent of q, the maximum solid density evolves similarly in the first, second and last panels until the critical metallicity limit is reached. Given that τ_s,max = 10⁰ however, there is a deviation of about 50 orbits between the time of filament formation, depending on whether q = 3 or q = 3.5. There is also no clear trend on how ρ_p,max∕ρ_g changes as both a function of q and τ_s,max.