I just got through installing a second aileron servo in my Magister. I highly suggest that if you have a 5-6 channel computer radio with flaperon function, that you perform this upgrade. Short of installing seperate flaps on this bird, this is the next best thing. Before this upgrade, my Magister landed prestty fast eapecially if I had to make a dead stick land on short notice. With the second servo and flaperons activated, the Magister lands a lot slower. Very nice!