The lightest way to do pull-pull is with the least amount of hardware. I use K&S #49 Kevlar from Tower Hobbies. It costs 2.69 for about 100 ft. I tie it directly through the servo horn and secure it with a drop of CA. On the rudder end I used a short peice of 2 56 rod with a loop in the end like jmulder. Very strong and light and CHEAP.