Explosion energy, E_expl, nickel mass, M_Ni, and NS kick velocity, v_kick, as a function of central specific entropy s_c of the SN progenitors of Case-A (panels a, d, g), Case-B (panels b, e, h), and Case-C accretors (panels c, f, i). Colours indicate the amount of accreted mass f_acc, and results for single-star models are shown for comparison. Pearson’s correlation coefficients, ρ, are provided, and to guide the eye and allow for easier comparison of the data across panels, quadratic curves fitted to the data are added.