Originally Posted by Granpa

A common mistake is that some don't realize is that the angle between the rod and the servo arm should be 90 degrees. Too often people think the center point is when the servo arm is at 90 degrees to the servo case. You need to remove and replace the servo arm or servo saver so that it is 90 degrees to the rod and not to the servo case. This means that the servo arm/servo saver will be forward of the center line of the servo case. If the servo arm/servo saver is properly positioned on the servo, the rod will need to be as much as 10mm or more shorter. This is something I see often and is not just an error a newbie makes. I've seen this on cars of experienced Mini racers.