Evolution of initially 35 M_⊙ models from the zero-age main sequence until the onset of iron core collapse (filled circles). Colors show models of different convective core overshooting values. Black crosses indicate intervals of 10⁵ yr. The black dotted line marks the transition from the hot to the cool wind mass loss regime at log(T_eff/K) = 4. Thick lines show where Wolf-Rayet wind mass-loss rates are applied.