in answer to your question, all the servos are brand new. If I understand you correctly, I should move the linkage on the servo arm inward so the servo arm is effectively shorter? I don't think there is much I can do with my horn on the control surface as I cut them down from their original length....I could always get new ones. Someone I just spoke to on the phone suggested I might be seeing so flexing of the servo mounting as the wing is of the molded variety. I had read that before, but it seems very stiff and has some sore of mesh prebuilt in it to which I epoxied a servo mount frame. I think I could try to remove the 2-3 millimeter of down aileron and flap I was flying around with. Maybe if the wing controls were more neutral the moderate dives that were resulting in flutter would not occur.