A method to control valves in a cylinder operating in a multi-stroke cylinder mode. The selecting includes: calculating delay times of fan-in paths and fan-out paths with respect to each of the plurality of nodes; and selecting the target node from the plurality of nodes based on the calculated delay times. The second latch is inserted in the feedback path of the keeper circuit of the first latch and is cross-coupled with the gates of the keeper circuit of the first latch. The end effector is controlled by a lever attached near the second handgrip.