The ifo www.flyifo.com is a lot of fun. I have the mini ifo, it weighs 5 ounces, and it just bounces is you hit something. the carbon in front of the prop saves the prop and if you hit another plane, the prop doesn't do any damage. If you are hooked on the sound and speed of glow, the ifo probably isn't your ideal plane. But if you like to fly down hallways at a high angle of attack at 2 mph, pulling 4 foot diameter loops, check it out. The outside frame is all carbon fiber, and you can cover it with either nylon or reynolds wrap from your local grocery store. It makes a pretty good trainer, too. If you drill it into the ground, just pick it up and fly again, like a zagi. I can get about 12 minute flights, more if throttle is used sparingly. Hovering looks great with a plane this small. just my 2c Hans