what I find to be a good way to measure out the wires for z-bends is to actually set everything up and insert my clevises into the quick connects about 1/3-1/2 way. I then like the wire up over the servo arm where I want to connect it and mark it with a sharpie. I recommend making a test bend in a spare piece of wire or at the end of a piece so you can get a feel for how the wire bends in relation to your sharpie mark. Then go ahead and bend the wire and adjust your servo arm and the clevis as needed to get the proper distances.