I cannot be of a lot of help as I have set up only one. Dubro sells a pull pull kit with everything. One note to remember is to make sure the geometry of the servo arms and horns are the same. If the servo horn arms have a little number next to them they are off by that many degrees. Same thing with the horns, (which is why these work so well), they must be right on the hinge line and exactly the same. If the geometry is off, even a tiny bit, you will get slack in a cable when the surface is deflected (then comes flutter...)
Tom onrecess PB#143