Wow, you've done quite a few things with it. I thought the Yellow Bee was only good for scaring spectators by flying too close . On Thanksgiving, my cousins from out of town actually grabbed the plane in midflight as if they were playing "500." One of them cut their finger on the prop. Serves him right! I was trying to do a loop the other day (following your instructions) and it almost made it (stalled at the apex). I think the plane's center of gravity is a bit off now that I've repaired it so much, as well as being slightly too heavy. I'll give some rolls a shot and maybe adjust with the CG and the elevators to do a loop.