Another prop question.
the prop I'm working on seems to have a center hole that is non perpendicular with the plane of the prop . When view from the side the tips don't cross the same plane with a difference of nearly 1/2 inch I think this is contributing to the off balance symptoms mentioned earlier. Can I overbore the center hole to over 10mm and use the 6 bolt hub to secure the prop? I think I can balance the prop with the prop washer and balancer cones from the Dubro balancer.
Long story short , does the center hole have to be 10 mm to fit the TOC 53 center shaft if the hub is bolted up properly?

Or should I get another prop and get it over with.
Obee.