I have not done any crazy testing on it but compared to a Nintendo Sensor bar this one feels tight and good. You can see a big difference when using it on the Wii Menu's. The control of that whacky finger feels a lot more precise compared to the 1st party one I had before.Within games, it does it's thing but you can see the difference in how some companies were good at programming the motion controller and others not so much. So do not blame this sensor bar if it goes from tight to loose motion controls once you turn on a game. I do not work for this place, just sayin.I already recommended this one to a friend and would buy again if need be.