Converting from the factory setting of no-spring centered throttle, I was easily able to follow the simple directions, back out the screw, and make the throttle spring-centered like the stock DJI controller. The problem is that it is not crisp. There is a lot of vertical slop that shows up mechanically and electrically. Yes, the screw is backed out all the way for maximum spring tension. Horizontally there is no slop. The right side stick is perfect (as it came from the factory) with absolutely no slop. I bet I'm missing something really easy, and I'm hoping you know the answer and would take the time to tell me. Many thanks!