KS distances between the simulations and the observational sample computed for five values of the acceleration parameter F = 4.5 × 10⁻⁵, 1.5 × 10⁻⁴, 4.5 × 10⁻⁴, 1.5 × 10⁻³, and 4.5 × 10⁻³ kpc Myr⁻², and three values of the compressive ratio ζ = 0.1 (blue points), 0.5 (orange points), and 0.9 (green points), which set the balance between compressive and solenoidal forcing (see Sect. 3.3). All other parameters are set to their standard values (see Table 2). Points correspond to reliable measurements of the KS distances. The triangle indicates a lower limit corresponding to a simulation where the upper error bar on R_KS tends toward infinity (see Appendix D).