RE: Phoenix Models Super Decathlon ???
On a more serious note, and having had this model before, I have witnessed the symptoms you described. The airfoil of this plane and the small chord of the ailerons does contribute to a lessening of thier effectiveness at slow speed. Being a scale-type aircraft, you have to fly it all the way to the ground. Much like a Cessna, a nose-down attitude should be maintained to keep airspeed above stalling and allow the wings sufficient airflow to maintain thier control responsiveness. Flair should begin at about 2-3' AGL with decent amount of approach on final.