I have a servo installed in my bucket to move my rangefinder up and down and it works great!..... but I find that sometimes, usually when I'm looking down towards the ground, when I raise my RF, and stop it at the top, it will slowly go back down again a little bit. It's like the gear ratio in the Servo is not strong enough to hold the weight of the RF (which is hollow resin without LED's).
I am using the Hi-tech HS-77BB low profile servo powered by 2 AA batteries.
What model Servo are you using?
Can you change the gears in the servo?
Also sometimes the servo will raise the RF then the RF post stops when it contacts the ear cap and kinda bounces off. How do you stop that from happening?