If, however, the spin should remain flat on throttling back and taking normal recovery action, the aircraft should be rocked fore and aft by full movement of the control column, opening up the engine as the stick is pulled back and throttling back as it is pushed forward.
Would be a bit tricky to keep a cool head and remember what to do while spinning ... another use for the 'string round the neck' technique, by the looks - right hand forward as left goes back and vice versa, must remember that next time I'm out spinning my Mustang! (if only)