Wish I knew more but I will give you my story and .02$ I purchased an Aerobird about 6 months ago. Well after going through about three wings I finally popped in the video that it came with and much to my surprise it said never to get into extreme nose down attitudes or turns. Wow wish I had watched that video b4. Apparently the aerobird does not have enough control authority to get itself out of what I believe the video called a death spiral. Anyways I also found that when trying to turn in any kind of wind it is necessary to have almost full throttle as the airflow over the control surfaces from just the planes forward motion is not enough. the increased airflow the plane receives from having the prop spining and pushing air over the tail helps tremendously.

Next tip. Go somewhere big, doesnt seem like the Aerobird requires it but we newbies need alot of space to compromise for our inexperience and dumb thumbs. I was flying in an area that was actually soccer fields. It was 4 fields and a very large parking lot. The fields were sectioned off only by stadium light poles so in essence it was sectioned into quarters. i still had a hell of a time keeping it out of the trees surrounding the fields and parking lot, and of course I had an even harder time keeping those poles from jumping out into my flight path, tricky *******s. I lost my aerobird to a pole that was atop an irrigation ditch, found the plane in 4 feet of water . I am now flying an Avistar and I will say that the actual RC planes with conventional control surfaces are a hell of alot easier to control. The aerobird had plenty of control authority to get itself into trouble but not near enough control to even start to recover. Just my 2 cents. Enjoy.

ZK