Upper panel: run of the toy-model parameter α (exponent of the power-law of the mass of accreting events on the disk) as a function of the mass of the primaries M_A from this paper and Gratton et al. (2023b). A lower value means that early episodes are more powerful. Lower panel: same for the toy-model parameter µ (relevance of outward migration). A lower value means that outward migration is more relevant