Any one else having trouble keeping their horizon level. I have calibrated the gimble 2 or 3 times. Each time it comes up and says error in calibrating the gimble. Then a few seconds later it says its been calibrated and all good. When flying it still seems like the gimble corrects slowly when turning. After a turn it will most of the time get pretty close to normal but sometimes not. Just seems a little slow in correcting here and there. And sometimes does not get back to perfectly level. Anything I am missing here?