Kris^. I had read on another thread where somebody drilled 2 holes through the prop and spinner backplate then glued 1/8" or 3/32" I forget pins into the prop which extended thru the spinner backplate. What's your opinion on this? It just seems alot easier to me.

I have an air models 26x12 on the front of mine. I cant get the nut real tight because I hold the prop for leverage and the spinner backplate and crankshaft turn when I try to crank down on the nut.

well. Now that I think about it. I like your idea more because with the prop jig you can duplicate the hole pattern easier if/when you change props.