Originally Posted by kenbad
Ok cool, how do you determine the heavy blade?? Trial and error?
Yup. Put a piece of tape on one blade & spool-up. If the vibes are worse, move it to the other blade. If there is less vibration, add more tape. Rinse & repeat as needed. I can usually get it right within 3-4 iterations. I've been using this method for balancing heli tail rotors & props that are too small for my magnetic balancer for years. It's quick and easy once you get the hang of it.