The motion system is simple and effective. One thing though...the leg hook on the little bungee does not open up far enough to attach it in the groove on the grommet. Some do, some don't. I thought about opening up the hook but had a better idea. I slid 2 grommets beyond the stake elbow leaving 1/2" space between the two. This will make it easy to hook directly to the stand and not having to put the leg hook into the groove in the grommet in the dark. With two grommets the hook can't slide and the stand will stay attached to the decoy.