Plot of the log P_i−q_i diagram for the Case B binary models in the binary grid from Jin et al. (in prep.) with M_{1, i} = 12.6 M_⊙. The color coding is based on the amount of mass expected to be shed during Case BC RLOF. The hatching indicates models that are flagged as having undergone unstable Case B RLOF according to the criterion from Marchant (2017) (single hatch), Pauli (2020) (cross hatch), and Pavlovskii & Ivanova (2015) (circle hatches).