Comparison of the evolution of the orbital parameters for the different scenarios explored by Rodríguez et al. (2021). Shown in dark blue are the results found with our modifications to the MESA source code, while in grey the results from Rodríguez et al. (2021). In the top (bottom) panel the evolution of P_orb (e) is represented for different initial conditions (see legend). All three cases are described in more detail in Rodríguez et al. (2021).