Well, the hinges are all ok, but I did find that the push rods that came with the kit really are poor grade. I can actually move the elevator up about 1/2 of an inch and down 1/2 an inch with out the servo moving a bit. Let me know. I sure am scootin along at a good click comming out of those dives as well, and the flutter thing, i mean the tail will really start shaking up and down violently and i do not get a whole lot of response from the elevator, I really have to slow down a whole lot when I start to exit a dive or the plane will keep on goin down with the tail shakin.