Formation time and fitting parameters for the exponential infall runs with different ω values. From left to right, first panel: formation time for the different fitted runs. Second panel: values for the fitting parameter to the abundance–age relation. Third panel: fitting parameter to the αDF, and fourth panel: fitting parameter to the MDF. The triangular points show failed runs, where the end result is larger than the ICs. Left panel: triangles indicate cases where one or more of the fitting parameters is larger than a threshold. The vertical dashed lines show the values for the initial conditions.