There is no problem operating a single acting cylinder with the SCVs on a Kioti. Just choose the port to plug into based on if you want the cylinder to extend when you move the lever forwards or backwards. With the lever centered no fluid is flowing out of the ports and there is no deadheading. I operate the single acting lift cylinders on my hay mower using the lower port of one of the SCVs on my DK65 so that it lowers when I move the lever forwards.
Greg