So I finally finished it. get the whole thing put together for balancing and setting the throws, etc. before the big day. the spinner backplate colapses as I tighten the screw and the backplate is contacting the cowl. Not to mention that the cone got into the prop and ruined that to boot. I guess I will have to go get a TruTurn and a new prop. Damn! It's a little bigger than I figured and boy is it ever pretty!