To those who never heard of drilling holes in main rotor blades and paddle:

This method is for advanced tweaking. This method was "test and proven" tweaks to make your chopper even more lighter. One thing u must do in drilling holes is that u have to cover your blades after that with scotch tape.

To skater_719
Can your chopper fly using original stock item first? If so.. can you tell us what is the spec for graupner 330 motor. I don't have the spec.

Super-Hornet