I currently have 4 of my fighters doing "Blind Shadow" for 15 mins every day - Do you feel that is an appropriate amount of time each session?

So far all 4 of them like it. I also have them using a balance board in between workouts, but they can't shut there eyes on a balance board for more then 5-10 secs before they fall off. That really proved to me how much your eyes play in balance.

Do you have any other thoughts i might be missing?[/QUOTE]
Eyes are the Problem with Balance, they are the main reason, for the imbalance in the muscular response. You have a Dominant Eye, while the other Eye is for Depth and Distance, the Dominant one is for movement the Peripheral eye, the preferred eye I call it. its the side we prefer to use, the Dominant side. Making each side of the body a little different in its mobility and flexibility. Theres a few ways of finding this out. Heres one Standing up on your prefered leg shut the same eye, feel the difference when you do it with the opposite eye, try it