Dennis,

The real question is what were the TX settings to get the throw on the elevators? If they were not set to allow 80% to 90% of the elevator channels maximum throw, you were not getting the most out of the servo. You can see this pretty well on the Servo Monitor screen, #75. If when you move the elevator stick the bug on the elevator display doesn't at least move to the lines on the top and bottom, you need to increase the elevators throw in the TX and change the mechanical linkage.