RE: Whats The Right Servo?
skysfallin,
A servo saver is made up of a hub that rigidly attaches to the servo and a housing with the arm that can rotate relative to the hub. There are a pair of springs in the housing that keep the arm centered relative to the hub. The springs will absorb shock transmitted back through the arm. Post #2 has a link to one on Tower Hobbies.
I edited this reply to include an image. The red squiggles represent the two springs. The hub and housing each have a couple of ears (blue and black lines) that the springs press against.
Stan