Various quantities related to the neutronization of the core in the comparison between the TW92 and S20 laminar flame speed parameterizations. First row: Effective M_Ch, computed using the mass weighted value of Y_e over the entire WD. The horizontal dashed line indicates the mass of the initial WD. Second row: Total mass of the ash M_ash, i.e., mass inside the level set. Third row: Maximum density ρ_max over time. Last row: Maximum total flame speed v_f, max of the flame anywhere on its surface. Here we also show the values of both the turbulent and laminar flame speed contribution. The vertical dotted lines indicate the time of the first simulation snapshot that where M_Ch, eff is well below the initial WD mass.