Weight is not an issue. Response is the issue. This bird is cheap compared to anything else out there and you would have to buy every mod available (which I nearly have) to come even close to the base price of others. That's what makes it so cool. You can try anything. And with some quality sim time, you can do just about anything the big birds can do. When I got my first heli a little over a year ago, I couldn't even hover for the first four months. The first day I had the blade it was in a perfect hover the first flight. Ok, second flight, I upgraded to the aluminum swash for the second. Have been going non-stop since. Although I'm not brave enough to invert yet, it's not because the bird's not capable. Just got the Bell-Hiller and autorotation gear mods. This is just too much fun.