Panels 1–6: comparisons of the ZAMS mass-remnant mass relation between the updated BSE (thin lines) and StarTrack (thick lines) for the B08 remnant-formation scheme and for Z = 0.0002, 0.006, 0.02, for different choices of the stellar-evolutionary time-step parameters pts1, pts2, and pts3. The values of these time-step parameters are indicated in the corresponding panels; only one value is indicated when pts1 = pts2 = pts3, otherwise the respective values are indicated. Panel 7: same comparison with pts1 = pts2 = pts3 = 0.001 when the default, to-date-public version of HRDIAG/MLWIND is utilized (see Sect. 2.4 for the details). The StarTrack data in these panels are from B10.