Top: HR diagram showing the evolutionary track of a 1.2 M_⊙ model computed with an overshoot of 0.1H_P, a vertical turbulent viscosity D_V computed with Ri_c = 1, a D_h increased by a factor 10² (red line, dashed), and a 1.3 M_⊙ model computed without overshooting and with the “standard” viscosities (blue line, full). Dots indicate the location of models with Δν = 23.3 μHz. Bottom: rotation profiles for the models above.