Since a spin is low airspeed manoeuver recovery therefore rudder should be just fine, in most jets spin recovery is ALMOST the same as piston except you don't reduce power because of the attendant trim changes etc confounding everything...1. center ailerons 2. opposite rudder against the turn HSI/ RMI. 3. yoke forward to gain airspeed. 4. Carefully, pullout subsequent dive; so it's ARE vs PARE. For a spiral dive level roll attitude on ailerons only the carefully pull from the dive again, leave power alone, reducing power in this case can lower the nose...not good!