I know this is olddd, and im on an 07, but I had similar problems from day 1... I did everything I could think of over the years and finally gave in and threw a gixxer stabalizer on it with a fork mount I machined up.. I don't know if the 08+'s have the room but its something to look into.. It is like a bandaid for the actual problem, but I found many handling benifets other then just the shake not being there anymore.
http://imageshack.us/photo/my-images/27/p8230025.jpg/