OK, but in the condition to avoid, it appears that the arm for the carburetor and in the next frame the servo arm are both plastic and non condutive. That being the case, you should not need to use the ball link arrangement anyway. The clevis is tight to the pushrod, so no rattle, and the clevis is to a plastic arm. !!??? That being said, I like to use a ball link, but i use the inner and outer Nyrod pushrods for my gas throttle setups.

Sincerely,

Richard