I think it has already been mentioned that the spin recovery technique is not the same for all types. The two aircraft types I instructed on in the RAF had different recovery techniques. Read the manual and know your aircraft's recommended recovery actions.
But in most aircraft, in the onset of a spin (incipient stage) which can be recognised as buffet with UNDEMANDED roll, centralising the controls and closing the throttle should work.
And as for picking up dropping wing with rudder - NO! What your instructor should have said was 'prevent yaw with rudder'. Large rudder inputs at the buffet are asking for a spin to start. The time to level the wings are when they are completely unstalled, i.e. when all the buffet has gone, even if one wing has droppped significantly.
[This message has been edited by Dan Winterland (edited 24 June 2001).]