I recently had an interesting conversation with Ninty technical support, as my wiimotes kept mysteriously unsynching themselves. Whilst chatting with an advisor, I mentioned that the paddles in wiiplay electric hockey were very jerky and stuck frequently. The advisor told me that all the guys there considered the sensor bar to work best when placed on the BOTTOM of the set, rather than the top, and configured appropriately. If anyone's having sensor issues, they may want to try this - it's made my wiimote a fair bit more responsive and less jittery!