A perfectly balanced rc Blade will mean less vibration in your plane and this is very beneficial – severe vibration can cause weaknesses and failures over time, not just in the airframe but also the electronic components of the plane. For the short time it takes to correctly balance a prop, the rewards are large!
The process for correctly balancing your blade goes thus:
Step 1: Secure the blade to be balanced in to the balancing tool (as per the instructions) and stand the tool somewhere where the prop can hang freely. Also, it’s important that there is no air movement in the room – even heavy breathing over the prop can give you a false reading.
Let the prop swing freely and let it come to a natural rest. If there is a discrepancy in weight between both blades, the heavier blade will hang lower than the lighter one: