While we're on the subject, there used to be a prop balancer that would let you balance the prop in a jig to find the true CG. You would then drill it out with a reamer. It's out of production now. I think it was a Robart or a Master Airscrew.

Has anyone used one of these, and have you seen one for sale? Don't want to hijack the thread, just asking a slightly off-beat question...

Thanks,

Bob