The cable is really kind of stiff. On my 4*60, I really have to much cable exposed at the engine end, and at full shut down, the cable bows up just a bit, but that's OK. For the rest of the time, it is smooth as silk. With my setup, the pull is to open and the push is closed, and it works well through out the range of movement. Just set up your servo movement to not overpower the movement except for engine kill. Normal idle will not be this extrememe movement, so things work OK.

One thing to keep in mind with any of the throttle linkages, is to set the idle stop screw on the carb so you can shut down the engine with maximum movement of the servo. Then make sure that that movement is only reached with the shut down swith or with maximum off trim of the throttle. I see to many guys that have the idle stop set so max off is a dead idle and the engine keeps thumping along until the pull or pinch the fuel line. The engine should shut off with the kill just like your car engine does when you turn off the key. For what it's worth, the throttle linkage is the hardest of the linkages to set corectlly in my mind. At least for me.

Don