That is some good info on spinner balancing. I had come across it recently, and saved it. My questions are about where to sand, drill or weight a prop that remains horizontal, but will not stay vertical. Some have talked about grinding on the hub, but I'm not clear whether to grind on the front or back. I seem to remember from sonewhere that this is a front to back balance problem, not a spanwise problem. Anybody got the good info about this part?
Thanks,
Roy