I am trialing a remote control with my Starkey WII's. I like the idea. But the problem I am having is even though it is set for both right and left units sometimes only one unit recieves the change and the aids get out of sink. They don't communicate between each other and I end up with 2 different programs running or 2 different volumes. Is this a common problem or is there an adjustment my audi can do to fix it?