P_i − q_i diagrams for our models as in Fig. 1, focusing on the models with q_i ≥ 0.5, where the color-coding now denotes different properties. From left to right, they show the mass lost by the system (i.e., not accreted by the secondary) during Case C mass transfer ($\mathrm{\Delta }{M}_{\mathrm{RLOF}-\mathrm{C}}^{\mathrm{system}}$), the average mass-loss rate due to RLOF during the last 100 years prior to the end of the simulation (Ṁ_RLOF), and the fraction of the SN kinetic energy that is expected to be converted into radiation by the interaction (M_CSM/(M_ej + M_CSM), see Sect. 5.2). The hatching, as well as contour lines, are the same as in Fig. 1. Since the pre-SN envelope properties of the two longest-period Case C models with q_i = 0.5 are rather unconstrained, we give the corresponding squares in the first and third panels a range of background colors indicating the range of possibilities. In the middle panel, we use a question mark for the three models which are expected to explode during or after a common envelope phase.