Originally Posted by spacecase
Just move the balancing shaft 90 deg on the truflight and wow your prop or spinner has a new heavy point, different ever time. And I did ream them properly. The dubro looks like it gets good reviews.
That does sound like a problem. I assume you have reversed the prop on the shaft and tried that. I would think a magnetic balancer with no contact points would be good.
Personally, I use a balancer I've had for 30 years with metal wheels, metal supports and a heavy aluminum base.