My battery fits tight as well. Not much room in there. Still have to seal the seams and pin striping, just been spending time camping and dirt bikin' in the mountains. It's done, otherwise. Should be able to get it in the air this coming week. It's got the new Magnum .52 XLS on it, I'll have to break it in also. Once done with that, I've got some APC 12x4 props to pull it around with. I'd like to see a report on the assembly and flying of that Funtana......looks like it might be my next plane!