I know that cgchris99 just posted a similar thread, but he did not get too much help. I want to know what you pros use to sharpen blades on broadheads and how do you know when they are really sharp enough. I normally just buy new blades, but from one season to the next I am not sure if the blades on the heads are still as sharp as they should be. They rustle around some in my bow box for 8 months. Thanks.