OK....I have a prop reamer and have reamed just enough into the back side of prop to make it fit. I was afraid that this would weaken the prop by only doing a partial ream. Guess it's just beginners jitters or something.

After I reamed it partially, I rechecked the balance and everything seemed good.

Has anyone ever tried the Du_bro metal Prop Nuts?? I am assuming that if you use one of these in place of a plastic spinner you can eliminate the backplate??

Also, how tight is tight when you tighten down the prop nut onto the shaft. The last prop worked itself loose...no damage to the plane but it did happen. Can I overtighten and damage the prop??

Thanks for your help.

Happy New Year