Love mine!!! I couldn't resist it about two years ago when it went under $100.00. I have an O.S. 32 in mine and that is the perfect combination for the plane as far as weight is concerned. The battery is near the aft wing saddle area double taped to the bottom side of the canopy floor. It will flat spin like crazy on high rate throws that are in the book. Just do a left snap with up elevator. After a couple rotations throw full down elevator and slowly cross the aileron to the right. SSSSlowly. Then throttle up and hang on. It nearly stops it's decent!!!! Knife edge horizontal eights and many other neat maneuvers also. A great arf for the size and money. I will buy another one when this one is gone.