What I like about the 1/4" valve is when I hook up an implement, by using the slow side of the control slot, it makes nice slow movements and doesn't jerk up and down. The negative is it will not stay up or at a set height ... the fact that the 1/4" valve will not maintain a height requires you to bump it back up once in a while ... It is my understanding that with a position control valve, it would hold the height you set. There are some other ways to work around it, but none as easy as just putting it at a position and it will stay there.