Updated Figure A.5 in Gagnier et al. (2026). Inspiral of a 0.2 M_⊙ companion through the envelope of a 2 M_⊙ red giant, using three drag force prescriptions. The blue curve uses our fitted drag and lift prescriptions (Eqs. 3a–3b); the orange is the prescription from De et al. (2020); the green is the Hoyle–Lyttleton formula, F_drag = πR_a²ρ_∞u_∞²; and the dashed blue curve uses our fitted drag prescription, but F_⊥ was set to zero.