I'm converting a Nexstar to flat wing and splitting the ailerons to make flaps. I've seen robart hinges inserted on a 45 angle so the hinge point is 1" below the aileron hinge point. I've seen another brand that has flat mounting pads and the hinge movement is guided via dual slotted tracks. These appear to have a lot of drop without a lot of control rod throw. Does this design ring a bell with anyone? Who makes them and where can they be purchased?