I'm using only e-manage alone. So far so good. As long I keep the battery alive, I can keep the setting happily. If the battery dies, then I will need to re-load the setting. This is what they told me setting of close loop is not mistaken. My next target is Cam. Dunno where to find a good cam for street use. Heard of pipercam, but cannot find yet in Sunway. Do you know where I can find one?