Accreted mass ΔM_BH [M_⊙] (left-hand column) and Eddington ratio f_Edd ≡ Ṁ_acc/Ṁ_Edd (right-hand column) evolution grouped by feedback intensity for three regimes – ϵ_c = 0, 10⁻³, and 5 × 10⁻³ – from top to bottom, assuming a spin of a = 0.99. The Eddington limit is marked by the dashed black line. The same colour-coding and symmetric logarithmic x-axis as in Fig. 1 are used throughout. In the bottommost left-hand panel, the yellow curve is nearly indistinguishable from the purple one, as the two are almost perfectly overlapped.