Comparison of our results to the default sets of critical mass ratios (M_a/M_d) implemented in the SeBa and binary_c rapid BPS codes and those found in detailed theoretical modelling efforts as a function of donor star radius. Each line corresponds to the source with the same style in the legend. As in Fig. 7, the solid black line and grey shading indicate the part of the parameter space that would lead to unstable mass transfer according to our quasi-adiabatic criterion.