I tried several of those things. None work, it always seems to act like a proportional. The more I turn the gain up the higher the tail revs, which si not supposed to happen. I made a short video of what is happening. The CP had just been initiated, the throttle was nothing and trim nothing. The gain was also set to nothing, and the Proporton was set to where the CP won't drift too bad. Then, I gave it slight throttle to make it spin a little. Next, I turned the Gain up. The video shows what happens. It's acting like the Prop. I don't get it. Any more suggestions?

http://www.youtube.com/watch?v=4WX9xYO6MFg

Link is up, but I just uploaded it so it may take a while to process.