I had the same problem when I was installing the EVO 35 in a H9 Mustang. Ended up finding a long, nylon servo arm. Cut off one side of the servo arm and installed the screw hole of the arm at the pivot point, and adding a second 2-56 bolt further down on the arm for a solid mount. The longer arm allowed for much better resolution and fixed this particular problem for me. Trial and error/experimentation paid off.