I don't directly work for CEN. But yes, this is the same simon that was helping you out with your truck.

I work for the government. But I help out at CEN when I can.

Oops, I just re-read your post, the setscrew I was talking about wasn't the one with the arm, the one I was talking about was the little collar closer to the servo arm. But you are correct, that by lengthening that arm you will get more torque.