A few other thoughts:
The Airmaster probably has the best engineered hub of the propellers discussed.
The Airmaster for some time has had a problem with introducing noise into the
radio/intercom
when the pitch changes and I believe the factory were aware of that
and had a fix - perhaps people with Airmasters can confirm/deny this.
Smart Avionics has now sold more than 120 constant speed controllers and I am
only
aware of 1 unit failing in service due to a component failure.
If you want a smooth prop - balance it!
Mark
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