I have been using Pull Pull for the Rudder and Elevator controls on most of my aerobatic planes. I find them rather easy to install, light weight and very good performance.

However.... I have used tiller arms. pulleys, direct connects etc... but have never been really satisfied with the non-linear motion of the cable pull from a straight arm. That is to say, when the servo or tiller arm turns, the cable does not get consistent, linear motion. They slack at one point.

I am wondering how some of you have addressed this.