Maximum mass-to-flux ratio as a function of dimensionless time (t/t₀) for all models. Solid lines indicate simulations with SL ionisation profiles while dashed lines indicate CR-only ionisation profiles. Colours indicate different Mach values (Black = 0.03, Red = 1, Green = 2, Blue = 3, and Purple = 4). The main plot shows the full time range while the inset zooms in on the range from 0 to 10t₀.