I've just built a tricopter using Tim Nilson's Delrin kit, but I can't get my yaw to work properly. It seems like the servo is only using a very small amount of its travel, and it doesn't feel like it yaws all that quickly as a result. It will also yaw in one direction slightly more easily than the other. I'll try changing the length of the linkage a little to see if I can even it up. I'm not sur…