I don't know, the hinge tape doesn't seem to stick very well at all(it's not dubro), I tried plain old packing tape, and that seems to be working great. One more question, when I power up holding the plane in my hand, both the rudder and elevator flutter slightly, is this a huge problem? Should I try to put some cf rods on them to reinforce them? Also, one of my ailerons goes up slightly higher then the other, is the going to majorly affect it's flight performance? Thanks