Yeah, I broke one of them the first week we had it, when I took it apart to replace the main shaft I took the rear stabilizer fin off, moved the battery, put more weight in the nose... haven't taken the weights out of the balance bar yet, have to try that. But it flies way faster than the stock one.

Between christmas and new years I brought the one into the office and let a couple other people try it, now we have about 5 or 6 people here that have helicopters. Lunch time and friday afternoons get a little crazy, lol.