I agree, it should not be sensative. I have a Tiger II, it is quite smooth and graceful. Not twitchy or sensative in any way. Minn's right you sound tail heavy a little bit. Did you balance the plane upside down? If you didn't you should. It will make it easier and more accurate. The pendulum effect will help you not fight against you. I am reading here that the tail heavy condition seems to crop up a lot with this ARF. Just recheck your balance and add weight or move the battery forward as needed. Good luck with it.

Mark Shuman