I have the choppers. The 2814/3 chopper sharpened and balanced is a $75.00 prop. Also if you ever saw a raw 2.8 chopper and see how the blades come out of the mold you will think, what the heck is wrong with this prop. It is a long story, but before you even start to sharpen and balance the prop you have to straighten out (repair) the blades. I have to do it on every one of them I sell. You can see the first two photos of a finished one. The next two photos show a raw one. See the leading edge bent back. HAS to be fixed.