АПУ-470 has declined axis toward plane, don't take me for grant, from somewhere I have 2 deg in my mind. Rocket first second or two after realising from the APU will have slightly decaying path, let's count it as 50 meters in down, then angle of attack will be induced by steering elements, let's count it as +5 deg and that Cx will be at least 50% higher and I'm giving such overload till second fifth when rocket will come in 0 deg of тангаж (don't have english term on mind, elevation perhaps). Rest of active time without or just slight angle of attack, in any case less then 1 deg, less then 0,75 even.