I have a jetLegend F-22. Bought it used and has had many many flights. I've put on more than two dozen myself. But I am always checking the elevators. I don't get any flutter but just seems they have more slop than I am comfortable with. They aren't mass balanced. I don't know how much force is on them statically but they obviously droop when no power is to the servos. Is it better to hav them statically balanced to neutral from pivot point or is it better to have them unbalanced? It flies nice and everything works fine but with the slop on he elevators always was a concern to me.